12 letters
- indistinctly21
- indocilities18
- inebriations17
- inelasticity19
- inequalities24
- inessentials15
- inexactitude25
- infanticidal22
- infanticides21
- infantilisms21
- infantilized28
- infantilizes27
- infatuations18
- infectiously23
- infelicities20
- infestations17
- infibulating24
- infibulation22
- infidelities18
- infiltrating20
- infiltration18
- infiltrative21
- infinitively24
- inflammation24
- inflationary20
- inflationism21
- inflationist18
- inflectional22
- influentials20
- informations20
- infuriations18
- ingratiating18
- ingratiation16
- ingratiatory17
- ingratitudes17
- inhabitation19
- inhalational18
- inhumanities20
- initializing26
- innervations19
- innovational20
- innovatively25
- inoculations19
- inosculating21
- inosculation19
- inquisitions24
- insanitation15
- inscriptions20
- insecticidal21
- insecticides20
- insectivores20
- insecurities17
- inseminating20
- insemination18
- insentiences18
- insinuations16
- insipidities17
- insobrieties16
- inspirations17
- inspissating19
- inspissation17
- installation16
- instantiated15
- instantiates14
- instauration15
- instigations16
- instillation16
- instillments19
- institutions15
- instructions18
- insufflating24
- insufflation22
- insularities15
- insurrection18
- integrations16
- intellection19
- intellective22
- intenerating17
- inteneration15
- interactions17
- intercepting22
- interception20
- intercutting20
- interdicting20
- interdiction18
- interdictive21
- interfertile17
- interjecting28
- interjection26
- intermitotic19
- intermitting19
- interpreting19
- interpretive20
- interrupting20
- interruption18
- interruptive21
- intersecting19
- intersection17
- interstation14
- interstimuli18
- interstitial14
- intertidally18
- intertillage17
- intertilling18
- intervention19
- intestinally18
- intimateness17
- intimidating20
- intimidation18
- intimidators17
- intimidatory19
- intonational16
- intoxicating26
- intoxication24
- intransitive18
- introduction19
- introjecting28
- introjection26
- intromitting19
- introverting20
- intuitionism18
- intuitionist15
- invaginating23
- invagination21
- invalidating22
- invalidation20
- invalidities19
- investigated20
- investigates19
- investigator19
- investitures18
- invigilating23
- invigilation21
- invigorating22
- invigoration20
- invitational19
- invocational22
- involutional21
- irradiations14
- irrationally17
- irredentisms17
- irredentists14
- irrelatively20
- irresistible16
- irresistibly18
- irresolution15
- irrespective22
- irritatingly18
- irrotational14
- isoantigenic19
- isoenzymatic30
- isolationism17
- isolationist14
- italianating17
- itemizations25
- itinerancies17
- itinerations14
- jactitations25
- jauntinesses24
- jesuitically29
- jettisonable26
- jocularities26
- journalistic27
- jurisdiction27
- juristically29
- juvenilities28
- karyokinetic26
- keratinizing29
- kickstarting26
- knottinesses18
- labanotation18
- laciniations18
- lacrimations20
- laicizations26
- lamentations18
- langoustines18
- laryngitides19
- laterization23
- latinization24
- latticeworks23
- lectionaries17
- legalization26
- legibilities19
- legislations17
- legislatives20
- legitimacies21
- legitimately21
- legitimating21
- legitimation19
- legitimatize27
- legitimators18
- legitimising21
- legitimizers27
- legitimizing30
- lentiviruses19
- leukopoietic24
- levitational19
- lexicalities24
- liberalistic20
- liberalities17