13 letters
- industriously20
- inexhaustible28
- inexhaustibly30
- inflationists19
- instabilities18
- installations17
- instantaneity18
- instantaneous17
- instantiating18
- instantiation16
- instantnesses16
- instaurations16
- instillations17
- instinctively25
- instinctually23
- institutional17
- instructional20
- instructively25
- instrumentals20
- instrumenting22
- insubstantial20
- interdistrict18
- interestingly20
- interindustry19
- interstadials16
- interstimulus20
- interstratify19
- intertwisting20
- intuitionists16
- investigating23
- investigation21
- investigative24
- investigators20
- investigatory22
- irrationalist15
- irreligionist17
- isolationists15
- isostatically20
- justification30
- justificative33
- justificatory31
- kapellmeister25
- laparoscopist23
- lastingnesses18
- laughingstock29
- lepidopterist21
- lexicologists27
- liberationist18
- lichenologist23
- lightfastness22
- linguistician22
- listenerships20
- lockstitching29
- lustfulnesses21
- lymphoblastic31
- magisterially22
- magistratical22
- magistratures19
- magnetostatic22
- mainstreaming23
- malacologists23
- malacostracan24
- maladjustment32
- maladminister22
- malariologist20
- manifestation21
- mariculturist22
- martyrologist21
- masterfulness22
- masterminding24
- mastersingers19
- masterstrokes20
- masticatories19
- mastigophoran24
- mastoidectomy25
- mastoiditides18
- masturbations21
- materialistic20
- megaloblastic26
- melodramatist21
- menstruations19
- mercantilists21
- metallurgists21
- metastability22
- metastasizing28
- meteoriticist19
- meteorologist19
- methodologist22
- microanalysts23
- microcrystals25
- microscopists25
- mifepristones23
- millennialist21
- mineralogists20
- miniaturistic21
- ministerially21
- ministrations18
- miscellanists22
- misconstruing24
- misestimating22
- misestimation20
- misregistered19
- misstatements20
- mistranscribe23
- mistranslated19
- mistranslates18
- mistreatments20
- mistrustfully25
- misunderstand21
- misunderstood20
- monochromists25
- monometallist22
- monopsonistic24
- monstrosities17
- monstrousness19
- morphologists24
- motorcyclists25
- multistranded21
- musicologists23
- myrmecologist27
- mystification25
- narratologist17
- narrowcasting23
- nationalistic19
- nematologists20
- neoclassicist21
- neonatologist18
- neoplasticism24
- neoplasticist21
- nephrologists22
- neurasthenias18
- neurasthenics21
- neuroblastoma22
- neurochemists23
- noctambulists25
- nonbiologists21
- nonbroadcasts22
- noncapitalist22
- nonchauvinist26
- noncommunists26
- nonconformist25
- noneconomists22
- nonesterified19
- nonexistences26
- nonhistorical21
- nonhysterical23
- nonindustrial19
- nonlinguistic23
- nonmainstream22
- nonmonetarist19
- nonpersistent19
- nonresistance19
- nonresistants16
- nonrestricted19
- nonscientists19
- nonsocialists19
- nonspecialist22
- nonstationary18
- nonstructural21
- nonstructured21
- nonsystematic23
- northeasterly19
- northeastward20
- northwesterly22
- northwestward23
- nostalgically24
- numerologists21
- nutritionists16
- objectivistic35
- obscurantists21
- obstetrically23
- obstetricians20
- obstinateness18
- obstructively27
- oceanologists20
- odontoblastic22
- oligopolistic23
- onomastically24
- onomasticians21
- onomatologist20
- operationists17
- opisthobranch27
- opportunistic24
- oppositionist20
- orchestraters18
- orchestrating21
- orchestration19
- orchestrators18
- orgiastically22
- ornithologist19
- orthodontists17
- orthopterists18
- osteomalacias20
- osteomyelitis19
- osteoplasties17
- osteosarcomas19
- outdistancing22
- outstandingly22
- outstretching22
- overabstracts23