13 letters
- hypostatizing32
- hypothecating28
- hypothesizing34
- hypoxanthines31
- ignominiously24
- illuminations21
- imaginariness20
- imaginatively26
- immortalising23
- immortalizing32
- impersonating23
- impertinences24
- impertinently24
- impoverishing28
- inactivations22
- inadvertences23
- inadvertently23
- inanimateness19
- inappreciable27
- inappreciably29
- inappropriate23
- inarticulates19
- inattentively22
- inaugurations19
- incalescences25
- incandescence26
- incandescents23
- incantational20
- incapableness25
- incapacitated24
- incapacitates23
- incarcerating23
- incarceration21
- incardination20
- incarnadining23
- incendiarisms22
- incentivizing34
- incinerations19
- inclinational21
- inclinometers22
- inclusiveness24
- incognizances33
- incombustible28
- incommodities24
- incommunicado29
- incompatibles27
- incompetences27
- incompetently27
- inconceivable29
- inconceivably31
- incongruences25
- incongruently25
- incongruities21
- incongruously25
- inconsecutive26
- inconsequence32
- inconsiderate19
- inconsistence22
- inconsistency24
- inconsonances23
- inconspicuous26
- inconstancies22
- incontestable22
- incontestably24
- incontinences23
- incontinently23
- inconvenience27
- inconveniency29
- inconvertible26
- inconvertibly28
- inconvincible30
- incorporating23
- incorporation21
- incorporative24
- incorporators20
- incorporeally24
- incorrectness21
- incorrigibles23
- incorruptible25
- incorruptibly27
- incorruptions22
- incorruptness22
- incredibility24
- incredulities20
- incredulously24
- incrementally25
- incriminating24
- incrimination22
- incriminatory23
- incrustations19
- incuriosities18
- incuriousness20
- indefatigable24
- indefatigably26
- indehiscences24
- independences24
- independently24
- indescribable25
- indescribably27
- indeterminacy24
- indeterminate19
- indeterminism22
- indeterminist19
- indifferences25
- indifferently25
- indigestibles21
- indiscernible23
- indisciplined24
- indisciplines23
- indiscretions19
- indispensable23
- indispensably25
- indisposition19
- indissociable22
- indissociably24
- indistinctive23
- individualise22
- individualism25
- individualist22
- individuality24
- individualize31
- individuating24
- individuation22
- indoctrinated20
- indoctrinates19
- indoctrinator19
- indomethacins24
- industrialise17
- industrialism20
- industrialist17
- industrialize26
- industriously20
- ineducability25
- ineffableness25
- ineffectively30
- ineffectually28
- inefficacious27
- inefficiently27
- inegalitarian18
- ineligibility23
- inevitability24
- inexactitudes26
- inexactnesses25
- inexhaustible28
- inexhaustibly30
- inexorability27
- inexpediences29
- inexpediently29
- inexpensively32
- inexperienced29
- inexperiences28
- inexplainable30
- inexpressible28
- inexpressibly30
- infallibility25
- infantilities19
- infantilizing31
- infeasibility23
- infectivities24
- inferentially22
- inferiorities17
- infertilities18
- infibulations23
- infiltrations19
- infinitesimal22
- inflammations25
- inflationisms22
- inflationists19
- inflexibility31
- inflorescence25
- influenceable27
- influentially24
- informalities21
- informational22
- informatively27
- informatorily23
- infotainments22
- infraspecific29
- infrequencies31
- infringements24
- infuriatingly24
- infusibleness23
- ingeniousness19
- ingenuousness20
- ingratiations17
- ingrownnesses21
- ingurgitating22
- ingurgitation20
- inhabitancies23
- inhabitations20
- inheritresses16
- inhomogeneity24
- inhomogeneous23
- inhospitality22
- inhumannesses22
- initialnesses16
- injudiciously32
- injuriousness26
- innocuousness21
- inobservances25