14 letters
- fluorographies26
- fluoroscopists25
- folliculitises24
- foodlessnesses20
- footlessnesses19
- footsorenesses18
- foraminiferans25
- forcefulnesses26
- forciblenesses25
- forebodingness25
- forehandedness23
- foreknowledges29
- foreordination20
- foreseeability23
- foreshortening23
- forestallments23
- forethoughtful29
- forgeabilities23
- formalizations31
- formidableness26
- formlessnesses22
- forthrightness24
- fortifications24
- fortuitousness20
- fortunetellers21
- fortunetelling24
- fossilizations28
- foundationally25
- foundationless22
- fractionalized32
- fractionalizes31
- fractionations22
- fragmentations24
- frangibilities24
- fraternization28
- fraudulentness23
- freakishnesses24
- freehandedness23
- freewheelingly29
- frequentations29
- frequentatives32
- frequentnesses29
- frictionlessly25
- friendlessness21
- friendlinesses21
- fructification28
- fruitfulnesses24
- fugitivenesses25
- functionalisms27
- functionalists24
- fundamentalism28
- fundamentalist25
- futurelessness21
- futuristically26
- gemeinschaften29
- gentrification24
- gesellschaften27
- glorifications24
- gracefulnesses25
- grandfathering26
- gratefulnesses22
- gratifications23
- guilefulnesses24
- handicraftsman28
- handicraftsmen28
- hemoflagellate27
- humidification28
- hyperefficient31
- hyperfunctions30
- hyperinflation27
- identification23
- inconformities25
- indefinability26
- indefiniteness21
- indifferencies26
- indifferentism26
- indifferentist23
- ineffabilities25
- ineffectuality28
- inefficiencies28
- infectiousness23
- infelicitously26
- infinitenesses20
- infinitesimals23
- inflammability31
- inflammatorily28
- inflectionally27
- inflexibleness31
- inflorescences26
- infrangibility27
- infrastructure23
- infusibilities23
- insignificance28
- insignificancy30
- insufficiently29
- interdiffusing26
- interdiffusion24
- interfaculties23
- interferential20
- interferograms23
- interferometer21
- interferometry23
- interfertility21
- interinfluence25
- irrefutability24
- jollifications32
- justifiability33
- justifications31
- liebfraumilchs31
- lifelessnesses20
- lifelikenesses24
- lignifications25
- lignosulfonate24
- lithifications24
- magnifications27
- malfunctioning30
- manifestations22
- manifoldnesses24
- manufacturings29
- meaningfulness27
- mercifulnesses26
- metafictionist24
- methoxyflurane34
- microfibrillar28
- microfilaments28
- mirthfulnesses25
- misclassifying29
- misfunctioning29
- misidentifying27
- misinformation25
- mollifications26
- mortifications24
- mournfulnesses25
- multifactorial26
- multifilaments27
- multiformities25
- multifrequency38
- mummifications31
- mystifications26
- neglectfulness27
- neurofibromata25
- newfangledness27
- nitrifications22
- nitroparaffins25
- nonconferences27
- nonconfidences28
- nonconflicting30
- nonconformance30
- nonconformisms29
- nonconformists26
- nondiversified25
- nonenforcement27
- nonfilamentous25
- nonfissionable24
- nonfluorescent25
- nonforfeitable26
- nonforfeitures23
- nonfulfillment30
- nonfunctioning28
- noninflammable31
- noninformation24
- nonperformance29
- nonsignificant26
- nullifications25
- overclassified26
- overclassifies25
- overconfidence30
- overfastidious23
- overfertilized32
- overfertilizes31
- overfulfilling31
- overidentified24
- overidentifies23
- overinflations24
- overrefinement26
- oversimplified29
- oversimplifies28
- pacifistically30
- parainfluenzas33
- passionflowers25
- patresfamilias24
- peacefulnesses26
- perfectibility29
- perfectionisms27
- perfectionists24
- perfectiveness28
- perfectivities27
- perfidiousness23
- performability29
- petrifications24
- pettifoggeries24
- photofinishers25
- photofinishing28
- pontifications25
- prefabricating29
- prefabrication27
- preferentially25
- prefigurations24
- prefigurements27
- preformulating28