14 letters
- desolatenesses17
- despicableness26
- despitefulness24
- detachednesses22
- detailednesses18
- determinedness21
- detestableness20
- devilishnesses23
- dexamethasones28
- diabolicalness24
- diagenetically25
- diaphanousness23
- dichloroethane24
- digressiveness22
- dilatorinesses17
- diminutiveness25
- dinitrobenzene30
- diphenylamines28
- directednesses20
- disconnectedly27
- disconnections24
- discreetnesses19
- discretenesses19
- discursiveness24
- disdainfulness23
- disjointedness27
- disorderedness18
- disorderliness18
- dispersiveness23
- dispiritedness20
- disruptiveness24
- dissipatedness20
- dissuasiveness21
- distinctnesses20
- divisivenesses24
- dogmaticalness25
- dolorousnesses18
- doubtfulnesses25
- downwardnesses24
- dreadfulnesses22
- dreamfulnesses24
- droughtinesses21
- dryopithecines26
- dwarfishnesses24
- educatednesses21
- effortlessness22
- effusivenesses26
- electioneerers19
- electioneering22
- electivenesses23
- electrogeneses21
- electrogenesis21
- electrokinetic26
- electromagnets24
- elementariness20
- enduringnesses21
- enormousnesses20
- enterogastrone18
- enviablenesses24
- epicontinental24
- epigenetically27
- etherealnesses18
- eugeosynclines25
- euphoniousness23
- evenhandedness25
- eventfulnesses25
- everydaynesses24
- exactingnesses28
- exhaustiveness29
- exiguousnesses26
- expectednesses29
- explicitnesses29
- exponentiation27
- expressiveness29
- extemporaneity30
- extemporaneous29
- extendednesses25
- extraneousness24
- fabulousnesses24
- facelessnesses22
- factiousnesses22
- factitiousness22
- faintishnesses21
- faithfulnesses25
- fallaciousness24
- familiarnesses22
- fancifulnesses27
- farfetchedness27
- farsightedness23
- fastidiousness20
- fatherlinesses21
- fathomlessness24
- fearlessnesses19
- fearsomenesses21
- featherbrained24
- fecklessnesses26
- felicitousness23
- femininenesses23
- ferrimagnetism26
- ferromagnesian24
- ferromagnetism26
- ferromanganese24
- feverishnesses24
- fictioneerings24
- fictitiousness22
- fiendishnesses22
- figurativeness25
- flagitiousness22
- flannelmouthed28
- flawlessnesses23
- fleetingnesses22
- foodlessnesses20
- footlessnesses19
- footsorenesses18
- forcefulnesses26
- forciblenesses25
- forebodingness25
- forehandedness23
- formidableness26
- formlessnesses22
- forthrightness24
- fortuitousness20
- fortunetellers21
- fortunetelling24
- fraudulentness23
- freakishnesses24
- freehandedness23
- frequentnesses29
- friendlessness21
- friendlinesses21
- fruitfulnesses24
- fugitivenesses25
- futurelessness21
- galactosamines24
- gamesomenesses23
- gastightnesses21
- gelatinousness20
- genealogically27
- generalisation19
- generalissimos21
- generalization28
- generationally22
- generousnesses19
- gewurztraminer33
- ghoulishnesses23
- gingerlinesses21
- gladsomenesses22
- glaucousnesses23
- gloriousnesses19
- gluttonousness21
- gorgeousnesses20
- gracefulnesses25
- graciousnesses21
- graspingnesses23
- gratefulnesses22
- gratuitousness19
- greenishnesses20
- gregariousness20
- grievousnesses22
- groundlessness21
- gruesomenesses21
- guilefulnesses24
- habitualnesses22
- hairlessnesses18
- handsomenesses22
- hardhandedness23
- hardheadedness22
- harmlessnesses21
- harmoniousness22
- headlessnesses19
- heavenlinesses23
- heedlessnesses19
- helplessnesses22
- highhandedness26
- historicalness21
- homelessnesses21
- homesicknesses27
- hopelessnesses21
- hornlessnesses19
- horriblenesses21
- humorousnesses22
- hydrocortisone23
- hydroxylamines33
- hydroxyproline33
- hyperawareness25
- hyperenergetic27
- hypermasculine30
- hypomagnesemia30
- idolatrousness18
- ignorantnesses19
- illiterateness17
- illusivenesses22
- illusorinesses18
- imaginableness25
- immoderateness22
- immunogenetics28
- impassableness25
- imperativeness25
- impermanencies28
- impertinencies25