11 letters
- insensitive17
- inseparable19
- insertional14
- insistences16
- insistently16
- inspissates15
- instability18
- installment18
- instalments17
- instantiate13
- instantness14
- instillment18
- instruments17
- insularisms17
- intangibles19
- integrities14
- intenerates13
- intensifier16
- intensifies16
- intensities13
- interabangs18
- intercalate16
- intercensal17
- interchains18
- interdental15
- interesting15
- interethnic18
- interisland15
- interlinear14
- interliners14
- intermedins17
- intermeshes17
- intermingle19
- internalise14
- internality16
- internalize23
- internments17
- internships18
- interphases17
- interplants17
- interstates12
- interstices15
- interstrain13
- intersystem17
- intertribal16
- intertwines16
- intestacies15
- intimations16
- intimidates16
- intractable19
- intrathecal18
- intrinsical17
- invariables20
- investments20
- iratenesses12
- irrealities12
- isinglasses15
- italianated14
- italianates13
- italianised14
- italianises13
- italianizes22
- itchinesses17
- itinerantly16
- itineraries12
- itinerating15
- itineration13
- janissaries21
- jitteriness21
- kimberlites22
- kinesthesia18
- kinesthesis18
- lamebrained20
- lamentation17
- laminarians17
- laminations17
- laminitises16
- langbeinite19
- lankinesses18
- lanthanides17
- larkinesses17
- lastingness16
- lebensraums20
- lecithinase18
- legitimates17
- legitimises17
- legitimisms20
- legitimists17
- leishmanial19
- leishmanias18
- lemniscates19
- lengthiness18
- lesbianisms19
- lethalities15
- liberalises16
- liberalisms19
- liberalists16
- liberalness17
- liberations16
- libertarian16
- libertinage18
- libertinism19
- librettists15
- licentiates16
- lieutenants15
- lightnesses17
- limitations16
- limitedness17
- linealities14
- lineamental18
- linearising16
- linearities13
- linecasters16
- lissomeness16
- listerioses12
- listeriosis12
- literalisms16
- literalists13
- literalness14
- literations13
- lithenesses15
- littermates15
- loathnesses15
- lustinesses14
- machineable24
- machineries20
- magisterial17
- magistrates16
- maidenhairs18
- mainlanders18
- mainstreams18
- maintainers16
- maisonettes15
- malignities18
- maltreaters15
- maltreating18
- managements21
- manchineels22
- mandarinate17
- mandarinism20
- mandataries16
- manginesses18
- manifestant19
- manifesters18
- manlinesses17
- manneristic19
- mannishness19
- manometries18
- manorialism19
- marbleising21
- marinations16
- marionettes15
- marshalcies20
- martensites15
- martensitic18
- martingales18
- massiveness19
- masterminds19
- masterships19
- masturbates18
- materialise15
- materialism18
- materialist15
- materiality17
- materialize24
- maternalism19
- maternities15
- mathematics22
- mathematize28
- matrilineal17
- matrimonial19
- matrimonies18
- maximalists25
- meaningless19
- meatinesses15
- mediastinal17
- meitneriums19
- memberships25
- memorabilia21
- memorialise18
- memorialist18
- menservants20
- menstruates16
- mentalistic19
- mentalities16
- mentionable20
- merchantman24
- merchantmen24
- mesmerising20
- messianisms18
- metabolisms21
- metabolites18
- metaethical20
- metalsmiths20
- metamerisms20
- metanalyses18
- metanalysis18
- metaphrases19
- metaplasias18
- metastasize23