13 letters
- cryopreserves25
- cryosurgeries21
- cryotherapies23
- cryptanalyses25
- culpabilities25
- cultishnesses21
- cunnilinguses24
- cunningnesses23
- curablenesses22
- curiousnesses19
- currentnesses19
- cursivenesses22
- cursorinesses18
- customariness21
- customshouses23
- cyclicalities26
- cyclopropanes29
- cyclosporines26
- cysticercoses24
- cytomembranes28
- dactylologies23
- dangerousness19
- daredevilries20
- darlingnesses19
- dastardliness17
- dauntlessness18
- deathlessness18
- decaffeinates24
- decasyllables25
- deceitfulness23
- decentralizes28
- deceptiveness25
- dechlorinates21
- decidednesses20
- deciduousness21
- decompensates24
- decompressing26
- decompression24
- decongestants21
- decongestions21
- deconsecrates21
- deescalations19
- defectiveness25
- defenestrated19
- defenestrates18
- defenselessly22
- defensiveness23
- defervescence28
- defibrillates22
- deforestation18
- degringolades21
- deinonychuses24
- delicatessens19
- deliciousness20
- delightedness21
- delinquencies30
- deliquescence32
- deliriousness17
- demagogueries22
- demandingness23
- demigoddesses21
- demilitarizes27
- demimondaines23
- demineralizes28
- denaturalizes26
- deniabilities19
- denominatives23
- denuclearizes29
- depoliticizes30
- depolymerizes32
- depressurized28
- depressurizes27
- derepressions18
- dermatologies20
- dermatophytes24
- desacralizing30
- desalinations17
- descriptively27
- desegregating21
- desegregation19
- desensitizers24
- desensitizing27
- desexualizing35
- desiderations16
- desirableness19
- desperateness18
- despoliations19
- despondencies23
- desquamations28
- dessertspoons18
- destabilizing30
- destituteness16
- destructively25
- destructivity24
- desulfurizing32
- desultoriness17
- determinacies21
- detumescences25
- deuterostomes18
- deviousnesses20
- devotednesses20
- dexterousness23
- diaphaneities20
- dieselization25
- differentness22
- diffusenesses22
- diffusiveness26
- diffusivities25
- digestibility22
- digressionary19
- dilatometries18
- dimensionless20
- dingleberries21
- dinucleotides21
- diphthongizes33
- directionless19
- directivities21
- disaccharides23
- disadvantages22
- disaffiliates21
- disaggregates20
- disallowances23
- disambiguates23
- disassemblies21
- disassociates17
- discipleships26
- discographies24
- discomfitures24
- discomposures24
- discordancies22
- discourtesies18
- discrepancies24
- discriminates21
- disfranchises23
- disharmonizes29
- disincentives23
- disinfestants19
- disintegrates17
- disinterested16
- disinvestment23
- disobediences22
- disorientates15
- disparateness18
- dispossessing20
- dispossession18
- dispossessors17
- disquantities25
- disrespectful25
- disrespecting23
- disseverances22
- dissoluteness17
- dissymmetries22
- distantnesses16
- distinguishes20
- distressfully22
- distressingly20
- ditransitives19
- diversenesses19
- dividednesses21
- documentaries22
- dodecaphonies24
- doggishnesses21
- dolefulnesses21
- dollishnesses19
- dolphinfishes26
- doltishnesses18
- domesticating23
- domestication21
- domesticities20
- donnishnesses19
- doublespeaker26
- doubtlessness20
- doughtinesses20
- downrightness23
- drapabilities21
- dreamlessness19
- drivabilities22
- drunkennesses22
- dubiousnesses20
- dumortierites18
- durablenesses20
- dutifulnesses21
- dynamometries23
- earnestnesses15
- earthlinesses17
- easygoingness21
- eavesdroppers24
- eavesdropping27
- ecclesiastics23
- ectoparasites19
- ecumenicities24
- editorializes24
- educabilities22
- educationeses19
- effectiveness27
- effectivities26
- effectualness25
- effervescence30
- efflorescence27
- effortfulness25