24 letter words
DICHLORODIFLUOROMETHANES​39
23 letter words
DICHLORODIFLUOROMETHANE​38
21 letter words
ANTIFERROMAGNETICALLY​32
BUCKMINSTERFULLERENES​34
STRAIGHTFORWARDNESSES​32
20 letter words (12 words)
BUCKMINSTERFULLERENE​33
CHLOROFLUOROMETHANES​33
COUNTERTRANSFERENCES​27
CYTODIFFERENTIATIONS​32
FORETHOUGHTFULNESSES​33
INTERSTRATIFICATIONS​25
OVERDIFFERENTIATIONS​30
PHOSPHOFRUCTOKINASES​39
PROFESSIONALIZATIONS​34
SPECTROFLUOROMETRIES​29
ULTRACENTRIFUGATIONS​26
UNSATISFACTORINESSES​25
19 letter words (32 words)
ANTIDESERTIFICATION​25
ANTIFERROMAGNETISMS​27
BOURGEOISIFICATIONS​27
CHLOROFLUOROMETHANE​32
COUNTERINFLATIONARY​27
COUNTERREFORMATIONS​26
COUNTERTRANSFERENCE​26
CYTODIFFERENTIATION​31
DIFFERENTIABILITIES​28
DISENFRANCHISEMENTS​30
DISRESPECTFULNESSES​27
IMMUNOFLUORESCENCES​30
INTERFEROMETRICALLY​29
INTERSTRATIFICATION​24
NEUROFIBROMATOSISES​26
NONENFORCEABILITIES​26
OVERCLASSIFICATIONS​29
OVERDIFFERENTIATION​29
OVERIDENTIFICATIONS​28
OVERSIMPLIFICATIONS​31
18 letter words (32 words)
ANTICOUNTERFEITING​24
ANTIFERROMAGNETISM​26
BOURGEOISIFICATION​26
COUNTERINFLUENCING​26
COUNTERREFORMATION​25
DEDIFFERENTIATIONS​26
DISENFRANCHISEMENT​29
FAINTHEARTEDNESSES​25
FERROELECTRICITIES​25
FORETHOUGHTFULNESS​31
IMMUNOFLUORESCENCE​29
INSUFFERABLENESSES​26
MULTIFARIOUSNESSES​23
MYELOPROLIFERATIVE​31
NONFRATERNIZATIONS​30
OVERCLASSIFICATION​28
OVERFERTILIZATIONS​33
OVERIDENTIFICATION​27
OVERSIMPLIFICATION​30
POLYESTERIFICATION​28
17 letter words (68 words)
AMINOTRANSFERASES​22
ANTIFERROMAGNETIC​25
ARIBOFLAVINOSISES​25
COMFORTABLENESSES​26
COUNTERINFLUENCED​25
COUNTERINFLUENCES​24
COUNTEROFFENSIVES​28
COUNTERSCIENTIFIC​26
CRESTFALLENNESSES​22
DEDIFFERENTIATING​26
DEDIFFERENTIATION​25
DIFFERENTIABILITY​29
DISFRANCHISEMENTS​28
DISGRACEFULNESSES​24
DISRESPECTFULNESS​25
DISTRESSFULNESSES​21
DISTRUSTFULNESSES​21
FERRIMAGNETICALLY​28
FISSIPAROUSNESSES​22
FLIRTATIOUSNESSES​20
16 letter words (132 words)
AMINOTRANSFERASE​21
ANTIFERROMAGNETS​22
ANTIPROFITEERING​22
ARTIFICIALNESSES​21
AUTOTRANSFORMERS​21
CHOLECALCIFEROLS​28
CONFIRMABILITIES​25
COUNTERINFLATION​21
COUNTERINFLUENCE​23
COUNTEROFFENSIVE​27
COUNTERREFORMERS​23
DECERTIFICATIONS​24
DEDIFFERENTIATED​25
DEDIFFERENTIATES​24
DENITRIFICATIONS​22
DESERTIFICATIONS​22
DESSERTSPOONFULS​22
DESSERTSPOONSFUL​22
DESULFURIZATIONS​29
DEVITRIFICATIONS​25
15 letter words (336 words)
DIFFERENTIATION​22
PROFESSIONALISM​22
DIVERSIFICATION​24
INFRASTRUCTURES​20
DIFFERENTIATING​23
RECONFIGURATION​21
DESERTIFICATION​21
RECERTIFICATION​22
ELECTRIFICATION​22
VIDEOCONFERENCE​26
DISENFRANCHISED​25
TRANSFERABILITY​23
TELECONFERENCES​22
PERSONIFICATION​22
RESOURCEFULNESS​20
INTERFEROMETRIC​22
CIRCUMFERENTIAL​24
DENITRIFICATION​21
UNDERPERFORMING​24
REMANUFACTURING​23
14 letter words (522 words)
INFRASTRUCTURE​19
PROFESSIONALLY​22
CERTIFICATIONS​21
DIFFERENTIATED​22
AFOREMENTIONED​20
REMANUFACTURED​22
TELECONFERENCE​21
DEFIBRILLATORS​20
FINGERPRINTING​21
REINFORCEMENTS​21
DIFFERENTIATES​21
COUNTERFEITING​20
UNPROFESSIONAL​19
DIFFERENTIALLY​24
TRANSFORMATIVE​22
CENTRIFUGATION​20
INTERFEROMETER​19
PREFERENTIALLY​22
INTERFEROMETRY​22
DIFFERENTIABLE​23
13 letter words (803 words)
MANUFACTURERS​20
PROFESSIONALS​18
CERTIFICATION​20
UNFORTUNATELY​19
PROLIFERATION​18
BENEFICIARIES​20
REFRIGERATION​17
UNCOMFORTABLE​22
BREASTFEEDING​20
REINFORCEMENT​20
REFRIGERATORS​17
DIFFERENTIATE​20
UNFORGETTABLE​19
FRAGMENTATION​19
CONFEDERATION​19
CONFECTIONERY​23
REFURBISHMENT​23
FERTILIZATION​25
CIRCUMFERENCE​24
DIFFERENTIALS​20
12 letter words (1146 words)
PROFESSIONAL​17
MANUFACTURER​19
CERTIFICATES​19
VERIFICATION​20
MANUFACTURED​20
PERFORMANCES​21
DIFFERENTIAL​19
CONFERENCING​20
INTERFERENCE​17
REFRIGERATOR​16
INFRINGEMENT​18
FORECLOSURES​17
TRANSFORMERS​17
TRANSFERRING​16
MANUFACTURES​19
FLUORESCENCE​19
FIREFIGHTERS​22
CHESTERFIELD​21
RESPECTFULLY​22
TRANSFERABLE​17
11 letter words (1578 words)
PERFORMANCE​20
CERTIFICATE​18
DIFFERENCES​20
ENFORCEMENT​18
PREFERENCES​18
COMFORTABLE​20
CONFERENCES​18
FURTHERMORE​19
TRANSFERRED​15
MANUFACTURE​18
REFURBISHED​20
INFORMATIVE​19
DIFFERENTLY​21
FREQUENCIES​25
REFLECTIONS​16
TRANSFORMED​17
REFINANCING​17
AFFIRMATIVE​22
FORTUNATELY​17
GRANDFATHER​19
10 letter words (1890 words)
CONFERENCE​17
REFERENCES​15
DIFFERENCE​19
FREQUENTLY​25
AFFORDABLE​19
PERFORMING​18
FAVOURITES​16
FEDERATION​14
INTERFACES​15
PREFERENCE​17
PROFESSION​15
FRIENDSHIP​19
CONFIGURED​17
REFLECTION​15
IDENTIFIER​14
FRAGRANCES​16
GIRLFRIEND​15
REFERENCED​16
AFTERWARDS​17
WATERPROOF​18
9 letter words (1914 words)
DIFFERENT​16
REFERENCE​14
FURNITURE​12
THEREFORE​15
INTERFACE​14
PROFESSOR​14
CERTIFIED​15
BREAKFAST​18
FRAMEWORK​21
FAVORITES​15
FREQUENCY​26
PERFORMED​17
WONDERFUL​16
FAVOURITE​15
FEATURING​13
PREFERRED​15
AFTERNOON​12
CAREFULLY​17
CONFIRMED​17
CONFIGURE​15
8 letter words (1543 words)
SOFTWARE​14
FEATURES​11
FEATURED​12
FRIENDLY​15
FAVORITE​14
TRANSFER​11
YOURSELF​14
INFORMED​14
OFFERING​15
POWERFUL​16
PROFILES​13
FORECAST​13
OFFICERS​16
REFERRED​12
FIREWALL​14
FREEWARE​14
FREQUENT​20
REFERRAL​11
VERIFIED​15
FORMERLY​16
7 letter words (970 words)
PROFILE​12
FRIENDS​11
FURTHER​13
FEDERAL​11
FOREIGN​11
FEATURE​10
PERFECT​14
FLOWERS​13
OFFERED​14
SURFACE​12
OFFICER​15
FREEDOM​13
EFFORTS​13
FAILURE​10
PERFORM​14
FIGURES​11
REFLECT​12
WELFARE​13
FOREVER​13
FILTERS​10
6 letter words (450 words)
BEFORE​11
FRIEND​10
OFFERS​12
FUTURE​9
FIGURE​10
FRENCH​14
FILTER​9
FATHER​12
FORMER​11
FOREST​9
EFFORT​12
FORCES​11
FLOWER​12
FASTER​9
FORCED​12
FRAMES​11
RELIEF​9
FORGET​10
REFORM​11
FINDER​10
5 letter words (136 words)
AFTER​8
OFFER​11
FORCE​10
FRAME​10
FRESH​11
BRIEF​10
REFER​8
FIBER​10
FEWER​11
FERRY​11
FEVER​11
FIRED​9
FIRES​8
FEARS​8
FLYER​11
FORGE​9
FIBRE​10
FARES​8
SAFER​8
RIFLE​8
4 letter words (25 words)
FREE​7
FIRE​7
FEAR​7
REEF​7
FARE​7
FORE​7
FERN​7
REFS​7
FRET​7
RIFE​7
REIF​7
FERE​7
REFI​7
SERF​7
TREF​7
FIER​7
FERM​9
FRAE​7
KERF​11
FEER​7
3 letter words
REF​6
FER​6
ERF​6