12 letters
- excitability28
- exhilarating25
- exhilaration23
- exhilarative26
- facilenesses20
- facilitating22
- facilitation20
- facilitative23
- facilitators19
- facilitatory21
- familiarised20
- familiarises19
- familiarized29
- familiarizes28
- familiarness20
- fatigability23
- ferrosilicon20
- fertilizable29
- fibrillating23
- fibrillation21
- filibustered21
- filibusterer20
- filmsettings22
- filthinesses19
- flammability28
- fluorouracil22
- forestaysail18
- forgeability23
- frangibility24
- friabilities19
- fritillarias17
- fritillaries17
- fulfillments26
- fusibilities20
- futilenesses18
- futilitarian18
- gillyflowers25
- greenmailers19
- greenmailing22
- guilefulness22
- guillotining21
- guiltinesses17
- habilitating21
- habilitation19
- habitability23
- handrailings20
- hatchability25
- hemodilution21
- hemophiliacs26
- hereditarily18
- heritability20
- honorability21
- humiliations20
- hygrophilous25
- ignitability21
- ignobilities19
- illegalities17
- illegalizing29
- illegibility22
- illegitimacy24
- illegitimate19
- illiberalism21
- illiberality20
- illiteracies17
- illiterately17
- illogicality22
- illuminances23
- illuminating22
- illumination20
- illuminative23
- illuminators19
- illusionisms19
- illusionists16
- illusiveness20
- illusoriness16
- illustrating18
- illustration16
- illustrative19
- illustrators15
- illuviations20
- imbecilities22
- immobilities22
- immobilizers31
- immobilizing34
- immovability28
- immutability25
- imperilments23
- imputability25
- inaudibility21
- incapability25
- incivilities21
- indelibility21
- indocilities18
- inducibility24
- ineffability25
- infantilisms21
- infantilized28
- infantilizes27
- infiltrating20
- infiltration18
- infiltrative21
- infiltrators17
- infusibility23
- insolubility21
- insolubilize28
- instillation16
- instillments19
- insurability20
- interfertile17
- intersterile14
- intertillage17
- intertilling18
- intervillage21
- invigilating23
- invigilation21
- invigilators20
- invisibility23
- irascibility21
- irritability18
- juvenilities28
- kilocalories21
- lactobacilli24
- leachability24
- legibilities19
- likabilities21
- lilliputians20
- livabilities21
- lovabilities21
- lyophilising24
- lyophilizers30
- lyophilizing33
- macrofossils22
- magniloquent30
- malleability23
- maquiladoras27
- memorability24
- mercantilism23
- mercantilist20
- methicillins23
- microfibrils25
- microfilaria22
- microfilmers25
- microfilming28
- microfossils22
- microvillous25
- militantness18
- militarising19
- militaristic19
- militarizing28
- millenarians19
- millesimally24
- milliamperes23
- millidegrees20
- millihenries20
- millilambert24
- millimicrons24
- millionaires18
- milliradians19
- milliseconds22
- milquetoasts26
- mobilization29
- modulability24
- monofilament24
- movabilities23
- mucilaginous24
- multibillion23
- multilateral19
- multilayered21
- multileveled24
- multilingual23
- multimillion23
- multiskilled24
- mutabilities20
- myofibrillar25
- myofilaments25
- myrmecophile29
- navigability25
- necrophiliac25
- necrophilias22
- necrophilism25
- neurofibrils21
- neutrophilic23
- nonbuildings23
- nonmilitants19
- nonutilities16
- notabilities17
- noteworthily21
- nucleophiles24
- nucleophilic27
- obligatorily21
- obnubilating24
- obnubilation22
- opposability24
- oscillations18
- oscillograms22
- oscillograph24
- oscilloscope23
- outbuildings22
- outcavilling25
- overbuilding25