16 letters
- commodiousnesses28
- commonsensically34
- communicableness35
- communitarianism31
- companionability33
- compartmentalise30
- compartmentalize39
- compartmentation30
- compatiblenesses30
- compensabilities30
- complementations31
- comptrollerships32
- compulsivenesses32
- computerizations36
- conceivabilities31
- conclusivenesses30
- conditionalities23
- conductibilities29
- confessionalisms28
- confessionalists25
- confirmabilities30
- confrontationist25
- conjunctivitises38
- connoisseurships27
- consanguineously29
- consequentiality34
- conservationists25
- conservativeness29
- conservatorships29
- conspiratorially27
- constitutionally26
- constitutionless23
- constructionally29
- constructionists25
- constructiveness29
- contagiousnesses24
- containerisation22
- containerization31
- contemptibleness31
- contiguousnesses25
- continuousnesses24
- contraindicating28
- contraindication26
- controversialism28
- controversialist25
- conventionalisms30
- conventionalists27
- conventionalized37
- conventionalizes36
- conversationally29
- convertibilities28
- conveyorizations36
- convincingnesses32
- convulsivenesses31
- coordinatenesses22
- copolymerization38
- coproprietorship30
- coquettishnesses32
- correspondencies28
- corruptibilities27
- cosmochemistries30
- cosmopolitanisms30
- counterattacking31
- counterbalancing32
- countercampaigns33
- counterclockwise35
- countercomplaint32
- countercriticism30
- counterculturist27
- counterespionage27
- counterevidences30
- counterguerillas26
- counterguerrilla26
- counterincentive30
- counterinflation27
- counterinfluence31
- counterinstances26
- counterinsurgent26
- counterintuitive27
- counterirritants22
- counteroffensive32
- counterpetitions25
- counterpicketing34
- counterquestions32
- counterreactions25
- countersignature25
- counterterrorism24
- counterterrorist21
- countertradition23
- counterviolences30
- counterweighting31
- creaturelinesses22
- creditablenesses25
- creditworthiness26
- criminalizations34
- criminologically33
- crossopterygians27
- cryopreservation29
- cryptozoologists36
- crystallizations33
- crystallographic33
- cumulativenesses30
- curmudgeonliness30
- curvilinearities26
- cyanocobalamines33
- cyanoethylations28
- cyclohexylamines41
- cyclophosphamide39
- cytophotometries29
- cytotechnologies30
- cytotechnologist30
- daguerreotypists25
- deacidifications28
- decalcifications31
- decarboxylations34
- decarburizations34
- decasualizations32
- decentralization32
- decertifications27
- declassification28
- deconcentrations26
- decontaminations26
- decorativenesses25
- dedifferentiated26
- dedifferentiates25
- definitivenesses26
- deglamorizations33
- dehumidification31
- dehydrogenations26
- deindustrialized31
- deindustrializes30
- deliberatenesses22
- deliberativeness26
- delightfulnesses28
- deliverabilities26
- demagnetizations33
- demilitarization31
- demineralization32
- democratizations33
- demystifications29
- denaturalization30
- denitrifications25
- denuclearization33
- denumerabilities26
- departmentalized35
- departmentalizes34
- depoliticization34
- depolymerization36
- depressurization31
- derivativenesses26
- desacralizations31
- desensitizations28
- desertifications24
- desexualizations36
- despicablenesses28
- despiritualizing34
- despitefulnesses26
- destabilizations31
- desulfurizations33
- determinableness26
- determinednesses23
- detribalizations31
- deuterocanonical27
- devitrifications28
- diabolicalnesses26
- diagonalizations31
- diagrammatically32
- diaphanousnesses25
- diastereoisomers20
- dichlorobenzenes37
- dichotomizations35
- differentiations25
- diffractometries29
- digressivenesses24
- dihydroxyacetone35
- dimensionalities23
- diminutivenesses27
- diphenhydramines32
- diphthongization37
- directionalities22
- disagreeableness24
- disarticulations23
- disciplinarities25
- discombobulating34
- discombobulation32
- disconnectedness27
- disconsolateness23
- discontentedness24
- discontinuations24
- discountenancing30
- discourteousness23
- discriminability30
- discriminatingly30
- discriminational26
- discriminatorily27
- discursivenesses26
- disdainfulnesses25
- disenfranchising30
- disentanglements26
- disequilibrating34