11 letters
- integrative18
- integuments19
- intelligent17
- intentional15
- interacting18
- interaction16
- interallied15
- interannual16
- interatomic18
- intercalate16
- interdental15
- interesting15
- interlacing19
- interlaying18
- interleukin19
- interlinear14
- interloping19
- intermingle19
- internalise14
- internality16
- internalize23
- interpolate16
- interregnum19
- interrogate14
- intertilled15
- inthralling19
- intolerable17
- intolerance17
- intriguants16
- intuitional15
- inventorial18
- itinerantly16
- itinerating15
- itineration13
- lacrimation19
- lamentation17
- laminations17
- langbeinite19
- langoustine17
- lateralling17
- latitudinal16
- laureations14
- leafletting19
- legionaries15
- legionnaire16
- legislation16
- legislature16
- legitimated18
- legitimates17
- legitimator17
- libertinage18
- librational17
- lieutenants15
- ligamentous19
- lineamental18
- literations13
- longanimity21
- magisterial17
- maintainers16
- malignantly22
- malingering21
- maltreating18
- maneuvering23
- manipulator20
- manoeuvring23
- manumitting22
- marathoning20
- marginality20
- marginalize27
- marginating20
- margination18
- marinations16
- marionettes15
- martingales18
- materialise15
- materialist15
- materiality17
- materialize24
- maternities15
- matriculant20
- matriculate19
- matrilineal17
- matrimonial19
- maturations16
- matutinally20
- mediational17
- megatonnage20
- meliorating18
- melioration16
- meliorative19
- mensuration17
- mentalities16
- mentionable20
- metallizing28
- methanation18
- metrication18
- micturating21
- mignonettes18
- migrational18
- millenarian18
- millenaries17
- millionaire17
- mineralogic21
- misaltering18
- misentering18
- mislearning19
- misrelating18
- mistreating17
- mistutoring18
- monolingual21
- monseigneur19
- mortalities15
- mountaineer17
- multicenter20
- multiclient21
- multiengine20
- multigrains19
- multination18
- multinomial21
- multiracial20
- multitiered17
- multivalent22
- mutilations17
- mutineering19
- natatoriums16
- nationalise14
- nationalism17
- nationalist14
- nationality16
- nationalize23
- negotiating17
- negotiation15
- neostigmine18
- neurilemmal21
- neurulation16
- nitrogenase15
- nitrosamine16
- nonallergic20
- nonargument20
- nonfamilial21
- nongraduate17
- nonintegral17
- nonliterate14
- nonmaterial17
- nonmetallic21
- nonmetrical20
- nonmilitant18
- nonmilitary19
- nonrelative18
- nonterminal18
- normalising19
- normalities16
- normalizing28
- numerations17
- nutritional15
- orientalism16
- orientalist13
- orientalize22
- orientating15
- orientation13
- ornamentals17
- ornamenting19
- outbleating19
- outdreaming19
- outgenerals16
- outintrigue16
- outlearning17
- outpainting19
- outpreening19
- outrivaling20
- outsmarting18
- outsteering15
- overletting19
- overmelting22
- patrilineal17
- patrimonial19
- pelargonium22
- penetrating18
- penetration16
- penitential17
- penultimate20
- permutation19
- pirouetting18
- planetarium20
- pollinating20
- pomegranate20
- portmanteau19
- premunition20
- prenominate19
- rallentando16
- rambouillet20
- ratatouille14
- ratiocinate15
- rationalise13
- rationalism16
- rationalist13
- rationality15
- rationalize22
- readmitting18
- realignment19