16 letters
- contemptibleness31
- contemptuousness29
- contiguousnesses25
- continuousnesses24
- contraindicating28
- contraindication26
- controversialism28
- controversialist25
- conventionalisms30
- conventionalists27
- conventionalized37
- conventionalizes36
- conversationally29
- convertibilities28
- conveyorizations36
- convincingnesses32
- convulsivenesses31
- coordinatenesses22
- copolymerization38
- coproprietorship30
- coquettishnesses32
- correspondencies28
- corruptibilities27
- cosmochemistries30
- cosmopolitanisms30
- counterarguments28
- counterattackers28
- counterattacking31
- counterbalancing32
- counterblockaded34
- counterblockades33
- countercampaigns33
- counterclockwise35
- countercomplaint32
- countercriticism30
- counterculturist27
- countercurrently29
- counterespionage27
- counterevidences30
- counterguerillas26
- counterguerrilla26
- counterincentive30
- counterinflation27
- counterinfluence31
- counterinstances26
- counterinsurgent26
- counterintuitive27
- counterirritants22
- countermovements32
- counteroffensive32
- counterpetitions25
- counterpicketing34
- counterpressures25
- counterproposals28
- counterquestions32
- counterreactions25
- counterreformers27
- counterresponses25
- countersignature25
- counterstatement25
- counterterrorism24
- counterterrorist21
- countertradition23
- counterviolences30
- counterweighting31
- courageousnesses24
- creaturelinesses22
- creditablenesses25
- creditworthiness26
- criminalizations34
- criminologically33
- crossopterygians27
- cryopreservation29
- cryptozoologists36
- crystallizations33
- crystallographer30
- crystallographic33
- cumbersomenesses30
- cumulativenesses30
- curmudgeonliness30
- curvilinearities26
- cyanocobalamines33
- cyanoethylations28
- cyclohexylamines41
- cyclophosphamide39
- cytophotometries29
- cytotechnologies30
- cytotechnologist30
- deacidifications28
- decalcifications31
- decarboxylations34
- decarburizations34
- decasualizations32
- decentralization32
- decertifications27
- declassification28
- deconcentrations26
- decontaminations26
- decorativenesses25
- dehumidification31
- democratizations33
- demystifications29
- dendrochronology30
- denitrifications25
- denuclearization33
- depoliticization34
- desacralizations31
- desertifications24
- despicablenesses28
- deuterocanonical27
- devitrifications28
- diabolicalnesses26
- diagrammatically32
- dichlorobenzenes37
- dichotomizations35
- diffractometries29
- dihydroxyacetone35
- directionalities22
- disarticulations23
- disciplinarities25
- discombobulating34
- discombobulation32
- disconnectedness27
- disconsolateness23
- discontentedness24
- discontinuations24
- discountenancing30
- discourteousness23
- discriminability30
- discriminatingly30
- discriminational26
- discriminatorily27
- discursivenesses26
- disenfranchising30
- disfranchisement30
- disintoxications29
- disqualification35
- dissatisfactions24
- dissociabilities24
- dithiocarbamates28
- diversifications28
- diverticulitises26
- dodecaphonically34
- dogmaticalnesses27
- dolichocephalies32
- ecclesiastically30
- ecclesiasticisms29
- echocardiography34
- eclaircissements27
- ecophysiological33
- electrifications27
- electroacoustics27
- electrochemistry30
- electrodeposited25
- electrohydraulic30
- electrolytically30
- electromagnetism29
- electromyographs32
- electromyography34
- electrooculogram30
- electropherogram30
- electrophilicity31
- electrophoresing28
- electrosurgeries23
- electrotherapies25
- electrothermally29
- electrotonically28
- emancipationists27
- encephalitogenic32
- encephalopathies31
- encyclopedically37
- endarterectomies24
- endocrinological29
- endocrinologists25
- enforceabilities27
- enfranchisements30
- enterochromaffin32
- enteropathogenic28
- enthusiastically27
- epichlorohydrins31
- epigrammatically34
- epizootiological35
- eschatologically31
- ethnographically33
- evangelistically31
- exceptionability36
- exceptionalities31
- excommunications38
- exemplifications37
- existentialistic28
- extrachromosomal35
- extracorporeally33
- extractabilities30
- extracurriculars32
- factitiousnesses24
- fallaciousnesses26
- fantasticalities24
- farfetchednesses29
- featherstitching29
- felicitousnesses25