12-Letter Words Starting With I
Looking for twelve-letter words that start with I? There are 776 of them in the tournament word lists, and every one is on this page. The most common, like INTRODUCTION, INSTRUCTIONS, INSTALLATION, sit right at the top.
Unlike alphabetical lists that bury likely answers in the middle, this list is sorted by how often each word appears in everyday English. Scan the first rows for probable answers; dig deeper for rare, high-scoring plays.
Most common
- introduction15
- instructions14
- installation12
- institutions12
- intelligence15
- intellectual14
- improvements21
- incorporated17
- independence18
- implementing19
- implications18
- intermediate15
- increasingly18
- interactions14
- intervention15
- illustration12
- individually20
- investigator16
- instrumental14
- intersection14
All 776 words (the small number on each word is its Scrabble point value)
- interference 17
- investigated 17
- introductory 18
- infringement 18
- insufficient 20
- inaccuracies 18
- inconsistent 14
- inflammatory 22
- incorporates 16
- interpreting 15
- informations 17
- inflammation 19
- imprisonment 18
- identifiable 18
- interpreters 14
- invitational 15
- immunization 25
- interviewing 19
- illumination 14
- incompatible 20
- interruption 14
- intermittent 14
- interconnect 16
- inequalities 21
- irrespective 19
- indefinitely 19
- investigates 16
- incidentally 18
- incontinence 16
- interpretive 17
- intermediary 18
- illustrative 15
- infiltration 15
- irresistible 14
- illustrating 13
- intimidation 15
- interception 16
- indebtedness 16
- indifference 21
- inaccessible 18
- inauguration 13
- irreversible 17
- inspirations 14
- insecticides 17
- illuminating 15
- implantation 16
- independents 16
- intimidating 16
- illustrators 12
- incompetence 20
- inscriptions 16
- interlibrary 17
- impoverished 23
- installments 14
- interstellar 12
- incarcerated 17
- incandescent 17
- interstitial 12
- inactivation 17
- inconvenient 17
- invertebrate 17
- intoxication 21
- interlocking 19
- intermission 14
- illegitimate 15
- incineration 14
- interrelated 13
- infrequently 27
- imaginations 15
- interrupting 15
- initializing 22
- inspectorate 16
- interspersed 15
- interviewees 18
- inflationary 18
- inefficiency 25
- intracranial 14
- interviewers 18
- incomparable 20
- instantiated 13
- irritability 17
- insurrection 14
- intoxicating 22
- impartiality 19
- interpolated 15
- inconclusive 19
- intersecting 15
- inapplicable 20
- inexplicable 25
- invigorating 17
- intelligible 15
- insemination 14
- integrations 13
- intensifying 19
- inadmissible 17
- infestations 15
- intercession 14
- inadequately 25
- invisibility 20
- impenetrable 18
- interrogated 14
- implementors 18
- impressively 22
- inextricably 26
- irregularity 16
- instrumented 15
- incarnations 14
- implementers 18
- incinerators 14
- indomethacin 20
- inexplicably 28
- interdiction 15
- inadequacies 24
- intrauterine 12
- imperfection 21
- interworking 20
- inclinations 14
- internalized 22
- interchanges 18
- indisputable 17
- infiltrating 16
- immeasurable 18
- insecurities 14
- infotainment 17
- inexperience 23
- impersonator 16
- interleaving 16
- intercepting 17
- immortalized 26
- interrogator 13
- invalidation 16
- interceptors 16
- impoundments 19
- interminable 16
- indefensible 18
- infomercials 19
- immaculately 21
- imperialists 16
- intercompany 21
- immeasurably 21
- inhospitable 19
- intermingled 16
- incompletely 21
- incrementing 17
- incalculable 18
- interjection 21
- industrially 16
- impregnation 17
- invalidating 17
- irreversibly 20
- irresistibly 17
- intransitive 15
- inaccurately 19
- interchanged 19
- invulnerable 17
- incantations 14
- intersession 12
- indiscretion 15
- isolationism 14
- isolationist 12
- insufferable 20
- interneurons 12
- indentations 13
- intertwining 16
- interlocutor 14
- insecticidal 17
- indisputably 20
- inarticulate 14
- indemnifying 22
- iconoclastic 18
- insurability 17
- isomorphisms 21
- invasiveness 18
- interspecies 16
- involvements 20
- incorrigible 17
- impermanence 20
- inordinately 16
- illegitimacy 20
- instillation 12
- interweaving 19
- inoculations 14
- immunoassays 19
- instantiates 12
- intriguingly 17
- illuminators 14
- intemperance 18
- interglacial 15
- insolvencies 17
- inheritances 17
- imperishable 21
- irrationally 15
- intercountry 17
- inactivating 18
- inaugurating 14
- intercalated 15
- insurgencies 15
- importations 16
- intercessory 17
- inflectional 17
- idealization 22
- incomparably 23
- incompetency 23
- irregardless 14
- introversion 15
- intransigent 13
- insinuations 12
- inventorying 19
- inauspicious 16
- iconographic 22
- incoherently 20
- impregnating 18
- indoctrinate 15
- intracardiac 17
- inhalational 15
- inextricable 23
- interlinking 17
- inconsolable 16
- incapacitate 18
- intercoolers 14
- innovatively 21
- intersegment 15
- immutability 21
- internalised 13
- infiltrators 15
- interjecting 22
- ineradicable 17
- indigestible 16
- interpolates 14
- immortalised 17
- indiscipline 17
- inclinometer 16
- interpolator 14
- intolerances 14
- intercoastal 14
- intermarried 15
- impertinence 18
- intercessors 14
- immobilizing 28
- interleukins 16
- immunologist 17
- independency 21
- interrogates 13
- influentials 15
- infidelities 16
- impersonated 17
- idiosyncrasy 21
- immigrations 17
- inadvertence 18
- isotopically 19
- intertextual 19
- incompetents 18
- indissoluble 15
- indigenously 17
- interservice 17
- ingratiating 14
- inquisitions 21
- interrupters 14
- intensifiers 15
- irritatingly 16
- interminably 19
- impersonates 16
- irreverently 18
- intelligibly 18
- incorporator 16
- irredeemable 17
- incinerating 15
- intraspecies 16
- illusionists 12
- indistinctly 18
- individuated 18
- imperatively 22
- intonational 12
- incriminated 17
- imperfective 24
- infiltrative 18
- insightfully 22
- irremediable 17
- invagination 16
- incorruption 16
- inducibility 20
- insufflation 18
- isoprenaline 14
- illegalities 13
- irredeemably 20
- incapability 21
- indefeasible 18
- insufferably 23
- invigilators 16
- infectiously 20
- intellection 14
- imprecations 18
- intuitionism 14
- incongruence 17
- internuclear 14
- intranasally 15
- irradiations 13
- incendiaries 15
- intercurrent 14
- identifiably 21
- interpleader 15
- irrotational 12
- invigilation 16
- intimidators 15
- irresolvable 17
- imponderable 19
- insectivores 17
- invigoration 16
- incentivized 27
- impeachments 23
- indissolubly 18
- inhabitation 17
- infibulation 17
- internalizes 21
- ignitability 18
- interdicting 16
- inharmonious 17
- impersonally 19
- inelasticity 17
- irresolution 12
- infundibulum 20
- intersperses 14
- insolubility 17
- intrapsychic 24
- interfaculty 20
- interlending 14
- impoverishes 22
- intersociety 17
- incalculably 21
- ichthyofauna 26
- ichthyosaurs 23
- iconographer 20
- iconolatries 14
- iconological 17
- icosahedrons 18
- ideationally 16
- ideographies 19
- ideologizing 24
- idolatrously 16
- idolizations 22
- ignobilities 15
- ignorantness 13
- illegalizing 23
- illegibility 18
- illiberalism 16
- illiberality 17
- illiteracies 14
- illiterately 15
- illogicality 18
- illuminances 16
- illuminative 17
- illusionisms 14
- illusiveness 15
- illusoriness 12
- illuviations 15
- imbecilities 18
- imbibitional 18
- imbrications 18
- immaculacies 20
- immanentisms 18
- immanentists 16
- immaturities 16
- immemorially 21
- immensurable 18
- immethodical 22
- immobilities 18
- immobilizers 27
- immoderacies 19
- immoderately 20
- immoderation 17
- immoralities 16
- immortalises 16
- immortalizer 25
- immortalizes 25
- immovability 24
- immunologies 17
- imparadising 18
- impartations 16
- impassioning 17
- impenetrably 21
- impenitences 18
- impenitently 19
- imperatorial 16
- imperceptive 23
- impercipient 20
- imperialisms 18
- imperilments 18
- imperishably 24
- impermanency 23
- impertinency 21
- imperviously 22
- impetiginous 17
- impetrations 16
- impingements 19
- impishnesses 19
- implicitness 18
- impoliteness 16
- imponderably 22
- importancies 18
- impoverisher 22
- imprecisions 18
- impregnators 17
- impressments 18
- improperness 18
- improvidence 22
- improvisator 19
- impudicities 19
- impuissances 18
- impurenesses 16
- imputability 21
- imputatively 22
- inaccessibly 21
- inactivities 17
- inadmissibly 20
- inadvertency 21
- inapparently 19
- inappeasable 18
- inappetences 18
- inapplicably 23
- inappositely 19
- inarticulacy 19
- inattentions 12
- inaudibility 18
- inaugurators 13
- incalescence 18
- incandescing 18
- incapacities 18
- incarcerates 16
- incarnadined 16
- incarnadines 15
- incautiously 17
- incendiarism 17
- incentivizes 26
- incertitudes 15
- incessancies 16
- incestuously 17
- inchoateness 17
- inchoatively 23
- incipiencies 18
- incisiveness 17
- incivilities 17
- inclemencies 18
- incognizance 26
- incoherences 19
- incommodious 19
- incommutable 20
- incommutably 23
- incompatibly 23
- incomputable 20
- incomputably 23
- inconcinnity 19
- inconformity 22
- inconsequent 23
- inconsolably 19
- inconsonance 16
- inconstantly 17
- inconsumable 18
- inconsumably 21
- incontinency 19
- incorporable 18
- incorporeity 19
- incorrigibly 20
- incriminates 16
- incrustation 14
- inculcations 16
- inculpations 16
- incumbencies 20
- incurvations 17
- incurvatures 17
- indecisively 21
- indeclinable 17
- indecorously 18
- indefeasibly 21
- indefectible 20
- indefectibly 23
- indefensibly 21
- indefinables 18
- indehiscence 20
- indelibility 18
- indelicacies 17
- indelicately 18
- indemnifiers 18
- indicational 15
- indicatively 21
- indifferency 24
- indigenizing 24
- indigestions 14
- indignations 14
- indirections 15
- indirectness 15
- indiscreetly 18
- individuates 17
- indivisibles 18
- indocilities 15
- indorsements 15
- inebriations 14
- ineffability 23
- ineffaceable 22
- ineffaceably 25
- inefficacies 22
- inefficients 20
- ineloquently 24
- inequivalved 28
- ineradicably 20
- inessentials 12
- inexactitude 22
- inexistences 21
- inexpedience 24
- inexpediency 27
- inexpertness 21
- inexpressive 24
- inexpugnable 24
- inexpugnably 27
- inexpungible 24
- infanticidal 18
- infanticides 18
- infantilisms 17
- infantilized 25
- infantilizes 24
- infatuations 15
- infelicities 17
- infelicitous 17
- infibulating 18
- infiniteness 15
- infinitively 21
- inflammables 21
- inflationism 17
- inflationist 15
- infrequences 26
- infundibular 18
- infuriations 15
- infusibility 20
- ingatherings 17
- ingloriously 16
- ingratiation 13
- ingratiatory 16
- ingratitudes 14
- ingurgitated 15
- ingurgitates 14
- inheritrices 17
- inheritrixes 22
- inhospitably 22
- inhumanities 17
- iniquitously 24
- innatenesses 12
- innervations 15
- innovational 15
- innumeracies 16
- inobservance 19
- inoperculate 16
- inosculating 15
- inosculation 14
- insalubrious 14
- insanenesses 12
- insanitation 12
- insecureness 14
- inseminating 15
- inseminators 14
- insentiences 14
- inseparables 16
- insipidities 15
- insistencies 14
- insobrieties 14
- insolubilize 23
- insouciances 16
- insouciantly 17
- inspissating 15
- inspissation 14
- inspissators 14
- instauration 12
- instigations 13
- instillments 14
- instructress 14
- insufflating 19
- insufflators 18
- insularities 12
- intactnesses 14
- intellective 17
- intenerating 13
- inteneration 12
- intentnesses 12
- interactants 14
- interallelic 14
- interarching 18
- interbedding 17
- interborough 18
- intercalates 14
- intercepters 16
- interchained 18
- interchanger 18
- interchannel 17
- intercluster 14
- intercompare 18
- interconvert 17
- intercostals 14
- intercourses 14
- intercropped 19
- intercrossed 15
- intercrosses 14
- interculture 14
- intercutting 15
- interdealers 13
- interdepends 16
- interdictive 18
- interdictors 15
- interdictory 18
- interdiffuse 19
- interestedly 16
- interfacings 18
- interfertile 15
- interflowing 19
- interfluvial 18
- interfolding 17
- interfusions 15
- intergeneric 15
- intergrading 15
- intergrafted 17
- intergrowths 19
- interinvolve 18
- interiorised 13
- interiorises 12
- interiorized 22
- interiorizes 21
- interjectors 21
- interjectory 24
- interjoining 20
- interknitted 17
- interknotted 17
- interlaminar 14
- interlapping 17
- interlarding 14
- interlayered 16
- interlinears 12
- interlinings 13
- interlobular 14
- interlooping 15
- intermarries 14
- intermatting 15
- intermeddled 17
- intermeddler 16
- intermeddles 16
- intermediacy 20
- intermeshing 18
- intermingles 15
- intermitotic 16
- intermitters 14
- intermitting 15
- intermixture 21
- intermontane 14
- internalises 12
- internucleon 14
- internuncial 14
- internuncios 14
- interoceanic 16
- interoceptor 16
- interorbital 14
- interpellate 14
- interplanted 15
- interplaying 18
- interpleaded 16
- interpluvial 17
- interpsychic 24
- interregnums 15
- interrelates 12
- interrobangs 15
- interrogatee 13
- interruptive 17
- interruptors 14
- interschools 17
- intersensory 15
- interspacing 17
- interstadial 13
- interstation 12
- intersterile 12
- interstimuli 14
- interstrains 12
- interstrands 13
- intertidally 16
- intertillage 13
- intertilling 13
- intertwisted 16
- intervalleys 18
- intervillage 16
- intervisible 17
- intervocalic 19
- interwrought 19
- intestinally 15
- intimateness 14
- intimidatory 18
- intolerantly 15
- intracardial 15
- intracompany 21
- intramurally 17
- intrapreneur 14
- intravitally 18
- intrepidness 15
- introjecting 22
- introjection 21
- intromission 14
- intromittent 14
- intromitters 14
- intromitting 15
- introspected 17
- introversive 18
- introverting 16
- intuitionist 12
- intumescence 18
- intussuscept 16
- invaginating 17
- invalidators 16
- invalidities 16
- inveiglement 18
- inventresses 15
- investitures 15
- inveteracies 17
- inveterately 18
- invigilating 17
- invigorators 16
- invitatories 15
- invocational 17
- involutional 15
- invulnerably 20
- inwardnesses 16
- ipecacuanhas 21
- irascibility 19
- iridescences 17
- iridescently 18
- iridologists 14
- ironicalness 14
- irredentisms 15
- irredentists 13
- irreformable 19
- irrefragable 18
- irrefragably 21
- irrelatively 18
- irrelevances 17
- irrelevantly 18
- irremediably 20
- irrepealable 16
- irresolutely 15
- irresponsive 17
- irreverences 17
- isoantigenic 15
- isobutylenes 17
- isochronally 20
- isochronisms 19
- isodiametric 17
- isoenzymatic 28
- isothermally 20
- isotonically 17
- italianating 13
- italianising 13
- italianizing 22
- itemizations 23
- itinerancies 14
- itinerations 12
Points use Scrabble US letter values
Frequently asked questions
How many twelve-letter words are there that start with I?
There are 776 twelve-letter words that start with I in the tournament word lists. The most common are INTRODUCTION, INSTRUCTIONS, INSTALLATION.
What are common twelve-letter words that start with I?
INTRODUCTION, INSTRUCTIONS, INSTALLATION, INSTITUTIONS, INTELLIGENCE are the most frequently used. The full list of 776 words on this page is sorted by everyday frequency, so the common ones come first.
Why are the words in this order?
Words are ranked by how often they appear in a trillion-word corpus of written English, most common first. That surfaces likely puzzle answers instead of hiding them mid-alphabet. Use the sort control to switch to alphabetical or points order.
Starting with I in other lengths
- 2-Letter Words Starting With I
- 3-Letter Words Starting With I
- 4-Letter Words Starting With I
- 5-Letter Words Starting With I
- 6-Letter Words Starting With I
- 7-Letter Words Starting With I
- 8-Letter Words Starting With I
- 9-Letter Words Starting With I
- 10-Letter Words Starting With I
- 11-Letter Words Starting With I
- 13-Letter Words Starting With I
- 14-Letter Words Starting With I
- 15-Letter Words Starting With I
- 16-Letter Words Starting With I
- 17-Letter Words Starting With I
- 18-Letter Words Starting With I
- 19-Letter Words Starting With I
- 20-Letter Words Starting With I