13 letters
- counterraided20
- counterreform24
- countersigned22
- countersniper22
- counterspells23
- counterstains19
- counterstated19
- counterstates18
- counterstream21
- counterstrike22
- counterstroke22
- counterstyles21
- countertenors19
- counterterror18
- counterthreat20
- counterthrust21
- countertrades19
- countertrends20
- countervailed24
- counterweight25
- counterworlds23
- courteousness19
- cyanoacrylate25
- cyanobacteria25
- cyanoethylate24
- decaffeinated25
- decaffeinates24
- decarboxylate30
- dechlorinated22
- dechlorinates21
- decompensated25
- decompensates24
- deconcentrate22
- deconsecrated22
- deconsecrates21
- deconstructed23
- decontaminate22
- defenestrated19
- defenestrates18
- defibrillated23
- defibrillates22
- dehydrogenate22
- deleteriously19
- delicatessens19
- delightedness21
- dematerialize27
- densitometers18
- dermatophytes24
- desperateness18
- destituteness16
- detectability23
- detectivelike26
- deteriorating17
- deterioration15
- deteriorative18
- determinacies21
- determinantal20
- determinately21
- determination19
- determinative22
- determinators18
- deterministic21
- deterrability20
- deuteragonist18
- deuteranomaly22
- deuteranopias19
- deuterostomes18
- devotednesses20
- dexterousness23
- diastereomers17
- differentiate21
- disaffiliated22
- disaffiliates21
- disaggregated21
- disaggregates20
- disambiguated24
- disambiguates23
- disarticulate19
- disassociated18
- disassociates17
- discontenting22
- discourtesies18
- discriminated22
- discriminates21
- disenchanters21
- disheartening20
- disintegrated18
- disintegrates17
- disintegrator17
- disinterested16
- disinterments19
- disintoxicate25
- disorientated16
- disorientates15
- disparateness18
- dispassionate18
- dissoluteness17
- distastefully22
- disubstituted20
- downheartedly24
- dumortierites18
- ecoterrorisms19
- ecoterrorists16
- ectoparasites19
- elaborateness18
- electrometers20
- electroplated22
- electroplates21
- embitterments23
- endoparasites18
- enlightenment24
- enregistering19
- enterocoelous19
- enterocolitis18
- enterokinases19
- enteropathies19
- enterostomies17
- enteroviruses19
- entertainment19
- epistemically26
- equipotential28
- eternalnesses16
- eternizations24
- exaggeratedly28
- exasperatedly27
- excommunicate34
- exenterations22
- existentially25
- experimenters27
- exquisiteness31
- exsanguinated26
- exsanguinates25
- extemporarily29
- extemporising29
- extemporizers35
- extemporizing38
- extendability28
- extensibility27
- extensionally26
- extensiveness26
- extensometers24
- exteriorising23
- exteriorities20
- exteriorizing32
- exterminating27
- extermination25
- exterminators24
- exterminatory26
- externalising25
- externalities22
- externalizing34
- exteroceptive30
- exteroceptors26
- exterritorial21
- extraliterary23
- fantasticated21
- fantasticates20
- fatefulnesses22
- ferroconcrete23
- filibusterers21
- filibustering24
- filterability23
- fingerprinted24
- flabbergasted26
- flavoproteins25
- flutterboards22
- foreshortened20
- foresightedly24
- fortunateness19
- fortuneteller20
- fraternalisms21
- freeheartedly22
- frighteningly27
- galvanometers24
- genteelnesses18
- geostrategies17
- geostrategist17
- glutethimides23
- glycoproteins25
- governmentese24
- granddaughter23
- granodiorites17
- grossularites17
- grotesqueness26
- grotesqueries25
- guttersnipish22
- hairsplitters19
- halfheartedly25
- handicrafters23
- harbormasters21
- hardheartedly22
- hatefulnesses21
- headquartered27
- helicoptering25
- hellgrammites25
- hemacytometer26
- hemichordates24
- hemocytometer26
- hepatectomies24
- hermaphrodite24