12-Letter Words Starting With I
There are 767 twelve-letter words starting with I in our dictionary; 358 of them are common words.
Type your own letters to find only the 12-letter words you can make, or leave it empty to open this list in the word finder.
The 600 most common of 767 words
- improvements21 points
- incompatible20 points
- individually20 points
- implementing19 points
- implications18 points
- incidentally18 points
- intelligence15 points
- interpreting15 points
- intervention15 points
- introduction15 points
- inconsistent14 points
- instructions14 points
- institutions12 points
- inefficiency25 points
- initializing22 points
- incompetence20 points
- insufficient20 points
- indefinitely19 points
- interviewing19 points
- irrespective19 points
- inaccessible18 points
- inaccuracies18 points
- increasingly18 points
- indefensible18 points
- independence18 points
- infringement18 points
- introductory18 points
- inconvenient17 points
- incorporated17 points
- interference17 points
- investigated17 points
- incorporates16 points
- investigates16 points
- intermediate15 points
- interrupting15 points
- instrumental14 points
- intellectual14 points
- interactions14 points
- intermittent14 points
- interruption14 points
- intersection14 points
- illustrating13 points
- illustration12 points
- installation12 points
- immobilizing28 points
- inexplicably28 points
- infrequently27 points
- inextricably26 points
- immunization25 points
- inadequately25 points
- inexplicable25 points
- inadequacies24 points
- impoverished23 points
- incompatibly23 points
- inexperience23 points
- impoverishes22 points
- impressively22 points
- inflammatory22 points
- interjecting22 points
- intoxicating22 points
- idiosyncrasy21 points
- immaculately21 points
- immeasurably21 points
- imperfection21 points
- indifference21 points
- inequalities21 points
- inquisitions21 points
- interjection21 points
- intoxication21 points
- inapplicable20 points
- incoherently20 points
- incomparable20 points
- insufferable20 points
- invisibility20 points
- involvements20 points
- impartiality19 points
- impersonally19 points
- inconclusive19 points
- inflammation19 points
- inhospitable19 points
- intensifying19 points
- interchanged19 points
- interlocking19 points
- interminably19 points
- interweaving19 points
- inventorying19 points
- identifiable18 points
- immeasurable18 points
- impenetrable18 points
- impertinence18 points
- impregnating18 points
- imprisonment18 points
- incalculable18 points
- incapacitate18 points
- incompetents18 points
- inflationary18 points
- intelligibly18 points
- interchanges18 points
- intermediary18 points
- interviewers18 points
- impersonated17 points
- inadmissible17 points
- incandescent17 points
- incarcerated17 points
- incorrigible17 points
- incriminated17 points
- indisputable17 points
- infelicities17 points
- inheritances17 points
- inhumanities17 points
- insecticides17 points
- intercepting17 points
- invalidating17 points
- invertebrate17 points
- invigorating17 points
- invulnerable17 points
- irrelevances17 points
- irreversible17 points
- irritability17 points
- immoralities16 points
- impersonates16 points
- importations16 points
- inauspicious16 points
- incarcerates16 points
- inconsolable16 points
- incriminates16 points
- independents16 points
- indigestible16 points
- infidelities16 points
- infiltrating16 points
- inscriptions16 points
- inseparables16 points
- interception16 points
- interconnect16 points
- interminable16 points
- intermingled16 points
- intertwining16 points
- intimidating16 points
- investigator16 points
- irregularity16 points
- illegitimate15 points
- illuminating15 points
- illustrative15 points
- imaginations15 points
- incendiaries15 points
- incinerating15 points
- indiscretion15 points
- indoctrinate15 points
- infatuations15 points
- infestations15 points
- infiltration15 points
- instrumented15 points
- intelligible15 points
- intermarried15 points
- intermingles15 points
- intersecting15 points
- interspersed15 points
- intimidation15 points
- intransitive15 points
- irrationally15 points
- illumination14 points
- inarticulate14 points
- inaugurating14 points
- incantations14 points
- incarnations14 points
- incinerators14 points
- inclinations14 points
- ingratiating14 points
- inoculations14 points
- insecurities14 points
- inspirations14 points
- installments14 points
- insurrection14 points
- intermarries14 points
- intermission14 points
- interpreters14 points
- interrogated14 points
- intersperses14 points
- irresistible14 points
- inauguration13 points
- indentations13 points
- interrogates13 points
- interrogator13 points
- illustrators12 points
- insinuations12 points
- interstellar12 points
- immortalized26 points
- immortalizes25 points
- impeachments23 points
- indemnifying22 points
- incompletely21 points
- indecisively21 points
- illegitimacy20 points
- infomercials19 points
- indistinctly18 points
- irreverently18 points
- irresistibly17 points
- imperialists16 points
- impersonator16 points
- incontinence16 points
- indebtedness16 points
- inordinately16 points
- indirectness15 points
- infiltrators15 points
- insurgencies15 points
- intensifiers15 points
- incineration14 points
- insemination14 points
- interrelated13 points
- inessentials12 points
- interrelates12 points
- incomparably23 points
- inextricable23 points
- insufferably23 points
- idealization22 points
- imperatively22 points
- improvidence22 points
- internalized22 points
- immutability21 points
- impenetrably21 points
- imperishable21 points
- incalculably21 points
- incapability21 points
- indefensibly21 points
- internalizes21 points
- immoderately20 points
- impermanence20 points
- incorrigibly20 points
- incumbencies20 points
- indisputably20 points
- infectiously20 points
- invulnerably20 points
- irremediably20 points
- irreversibly20 points
- imponderable19 points
- inaccurately19 points
- irascibility19 points
- iconoclastic18 points
- illegibility18 points
- imbecilities18 points
- imprecations18 points
- inadvertence18 points
- indelicately18 points
- indiscreetly18 points
- infanticides18 points
- intemperance18 points
- interviewees18 points
- irrelevantly18 points
- impregnation17 points
- incisiveness17 points
- incivilities17 points
- indelicacies17 points
- infelicitous17 points
- inflectional17 points
- infotainment17 points
- insectivores17 points
- insolubility17 points
- interlinking17 points
- interpretive17 points
- intriguingly17 points
- irredeemable17 points
- irremediable17 points
- implantation16 points
- impoliteness16 points
- industrially16 points
- interceptors16 points
- interdicting16 points
- interleaving16 points
- invalidation16 points
- invigoration16 points
- irritatingly16 points
- indissoluble15 points
- inseminating15 points
- interdiction15 points
- interpolated15 points
- introversion15 points
- investitures15 points
- invitational15 points
- irresolutely15 points
- incrustation14 points
- intercession14 points
- intercessors14 points
- interlarding14 points
- interpolates14 points
- isolationism14 points
- illegalities13 points
- intransigent13 points
- irresolution12 points
- isolationist12 points
- immobilizers27 points
- inexpressive24 points
- irredeemably20 points
- inarticulacy19 points
- inconsolably19 points
- illogicality18 points
- inaudibility18 points
- indecorously18 points
- indissolubly18 points
- incautiously17 points
- incestuously17 points
- indiscipline17 points
- ineradicable17 points
- insecticidal17 points
- insolvencies17 points
- invigilating17 points
- ingloriously16 points
- inspectorate16 points
- invigilation16 points
- invigilators16 points
- interregnums15 points
- intolerantly15 points
- insalubrious14 points
- interlocutor14 points
- illusionists12 points
- intrauterine12 points
- inexpediency27 points
- immovability24 points
- imperishably24 points
- inexpedience24 points
- iniquitously24 points
- imperceptive23 points
- incompetency23 points
- ineffability23 points
- imperviously22 points
- inhospitably22 points
- immemorially21 points
- inaccessibly21 points
- indefeasibly21 points
- indicatively21 points
- impenitently19 points
- incommodious19 points
- intervocalic19 points
- implicitness18 points
- inactivating18 points
- indefeasible18 points
- individuated18 points
- iridescently18 points
- illiberality17 points
- immunologist17 points
- inactivation17 points
- inconstantly17 points
- incrementing17 points
- individuates17 points
- inharmonious17 points
- intercessory17 points
- introspected17 points
- incarnadined16 points
- illiterately15 points
- incarnadines15 points
- interrupters14 points
- intracranial14 points
- ingratiation13 points
- instantiated13 points
- interlinings13 points
- instantiates12 points
- instillation12 points
- intersession12 points
- interstitial12 points
- imperfective24 points
- inexpugnable24 points
- inexpungible24 points
- interjectory24 points
- ichthyosaurs23 points
- illegalizing23 points
- impermanency23 points
- inconsequent23 points
- insolubilize23 points
- iconographic22 points
- immethodical22 points
- imponderably22 points
- inconformity22 points
- ineffaceable22 points
- inexactitude22 points
- inheritrixes22 points
- interiorized22 points
- introjecting22 points
- identifiably21 points
- inadvertency21 points
- independency21 points
- interiorizes21 points
- intermixture21 points
- introjection21 points
- irrefragably21 points
- isomorphisms21 points
- impercipient20 points
- inadmissibly20 points
- incommutable20 points
- incomputable20 points
- indefectible20 points
- ineradicably20 points
- infundibulum20 points
- intermediacy20 points
- isothermally20 points
- ideographies19 points
- impoundments19 points
- improvisator19 points
- incorporeity19 points
- inobservance19 points
- irreformable19 points
- isotopically19 points
- icosahedrons18 points
- immensurable18 points
- implementers18 points
- impressments18 points
- improperness18 points
- impuissances18 points
- incipiencies18 points
- inconsumable18 points
- incorporable18 points
- indelibility18 points
- insufflation18 points
- interdictory18 points
- intimidatory18 points
- introversive18 points
- intumescence18 points
- inveiglement18 points
- inveterately18 points
- irrefragable18 points
- illuminative17 points
- immigrations17 points
- immoderation17 points
- incendiarism17 points
- inchoateness17 points
- incongruence17 points
- indeclinable17 points
- indigenously17 points
- inelasticity17 points
- infantilisms17 points
- inflationism17 points
- ingatherings17 points
- insouciantly17 points
- insurability17 points
- intellective17 points
- interruptive17 points
- interservice17 points
- intracardiac17 points
- invaginating17 points
- irresolvable17 points
- irresponsive17 points
- isodiametric17 points
- idolatrously16 points
- illuminances16 points
- impurenesses16 points
- incessancies16 points
- inclinometer16 points
- incorporator16 points
- incorruption16 points
- inculpations16 points
- ingratiatory16 points
- interestedly16 points
- interoceptor16 points
- intussuscept16 points
- invagination16 points
- inwardnesses16 points
- irrepealable16 points
- illusiveness15 points
- indirections15 points
- infiniteness15 points
- inflationist15 points
- ingurgitated15 points
- innovational15 points
- intercalated15 points
- interfertile15 points
- interglacial15 points
- intermitting15 points
- interpleader15 points
- intestinally15 points
- intrepidness15 points
- involutional15 points
- irredentisms15 points
- iconolatries14 points
- ingurgitates14 points
- insistencies14 points
- instillments14 points
- intactnesses14 points
- intellection14 points
- intercalates14 points
- intercostals14 points
- intercurrent14 points
- intermontane14 points
- internuclear14 points
- internuncial14 points
- internuncios14 points
- interpellate14 points
- interpolator14 points
- intrapreneur14 points
- intromission14 points
- intuitionism14 points
- ironicalness14 points
- irregardless14 points
- integrations13 points
- interstadial13 points
- irredentists13 points
- illusoriness12 points
- instauration12 points
- intonational12 points
- intuitionist12 points
- inequivalved28 points
- isoenzymatic28 points
- inexpugnably27 points
- ichthyofauna26 points
- incognizance26 points
- infrequences26 points
- immortalizer25 points
- ineffaceably25 points
- infantilized25 points
- ideologizing24 points
- indifferency24 points
- indigenizing24 points
- ineloquently24 points
- infantilizes24 points
- interpsychic24 points
- intrapsychic24 points
- inapplicably23 points
- inchoatively23 points
- incommutably23 points
- incomputably23 points
- indefectibly23 points
- itemizations23 points
- idolizations22 points
- impoverisher22 points
- imputatively22 points
- inefficacies22 points
- insightfully22 points
- italianizing22 points
- impertinency21 points
- imputability21 points
- inconsumably21 points
- inexistences21 points
- inexpertness21 points
- infinitively21 points
- inflammables21 points
- innovatively21 points
- intercompany21 points
- interjectors21 points
- intracompany21 points
- ipecacuanhas21 points
- iconographer20 points
- immaculacies20 points
- indehiscence20 points
- indomethacin20 points
- inducibility20 points
- inefficients20 points
- infusibility20 points
- interfaculty20 points
- interworking20 points
- isochronally20 points
- immoderacies19 points
- immunoassays19 points
- impingements19 points
- impishnesses19 points
- impudicities19 points
- inapparently19 points
- inappositely19 points
- incoherences19 points
- inconcinnity19 points
- incontinency19 points
- insufflating19 points
- intercropped19 points
- interdiffuse19 points
- intergrowths19 points
- interwrought19 points
- isochronisms19 points
- ignitability18 points
- imbibitional18 points
- imbrications18 points
- immanentisms18 points
- immobilities18 points
- imparadising18 points
- impenitences18 points
- imperialisms18 points
- imperilments18 points
- implementors18 points
- importancies18 points
- imprecisions18 points
- inappeasable18 points
- inappetences18 points
- incalescence18 points
- incandescing18 points
- incapacities18 points
- inclemencies18 points
- indefinables18 points
- indemnifiers18 points
- indivisibles18 points
- infanticidal18 points
- infibulating18 points
- infiltrative18 points
- infundibular18 points
- insufflators18 points
- interborough18 points
- interchained18 points
- interchanger18 points
- intercompare18 points
- interdictive18 points
- interfacings18 points
- interfluvial18 points
- interinvolve18 points
- intermeshing18 points
- interplaying18 points
- intervalleys18 points
Quick facts
- Total words: 767
- By usage: 186 very common, 172 common, 409 rare
Highest scoring (classic tiles)
- immobilizing 28
- inequivalved 28
- inexplicably 28
- isoenzymatic 28
- immobilizers 27
- inexpediency 27
- inexpugnably 27
- infrequently 27
- ichthyofauna 26
- immortalized 26
Most common
- improvements
- incompatible
- individually
- implementing
- implications
- incidentally
- intelligence
- interpreting
- intervention
- introduction
Definitions
- incompatible (adjective)
- Not compatible.
- individually (adverb)
- Apart from others.
- incidentally (adverb)
- Introducing a different topic.
- intelligence (noun)
- The ability to comprehend; to understand and profit from experience.
The twelve-letter words that start with I number 767 in our dictionary. About 358 of them are common, which is the group most players will recognise on sight, and the remainder are rarer words that still count in the majority of games. The list is complete, computed from the full word list rather than typed by hand, so you can trust that nothing is missing. The best scorer is IMMOBILIZING, at 28 points.
How to use this page
To use this page, start with the search box. Type the letters on your rack, add a question mark for each blank, and press search. The tool keeps this page's constraint and returns only the words you can spell. Below the box, the full list is arranged with common words first, followed by the quick facts, definitions and related lists.
Tips
A word list is also a study tool. Reading through the twelve-letter words starting with I once or twice is enough to make the unusual ones familiar, and familiarity is what lets you spot a play under time pressure. Try covering the list and writing down as many as you can, then compare. Use the definitions on this page to attach meaning to the words you did not know, since a word with a meaning sticks far better than a string of letters. Return to the list after a few days and repeat.
Questions
What is the highest-scoring word among the twelve-letter words starting with I?
IMMOBILIZING scores 28 points with classic tile values, ignoring board multipliers. The full top ten is in the quick facts above; switch the tile set on the search tool if you play with different letter values.
Why are some of these words unfamiliar?
409 of the 767 words on this page are tagged rare, meaning they fall outside the usual spell-check vocabulary. They are still real words, and many are legal plays, but you should expect a challenge if someone asks you to define them.