14 letters
- radiosensitive20
- reactivenesses22
- reconstructive26
- redintegrative22
- redistributive23
- reflectiveness26
- reflectivities25
- refractiveness25
- refractivities24
- regressiveness21
- regressivities20
- rehabilitative24
- remuneratively26
- repetitiveness22
- representative22
- repressiveness22
- reproductively29
- respectiveness25
- responsiveness23
- retrospectives24
- revivification29
- seronegativity23
- seropositivity23
- sportivenesses22
- subjectiveness35
- subjectivising37
- subjectivistic37
- subjectivities34
- subjectivizing46
- submissiveness26
- substantiative23
- substantivally27
- substantivized33
- substantivizes32
- substitutively26
- subversiveness27
- successiveness26
- suggestiveness24
- supercivilized36
- supereffective31
- superexpensive33
- supersensitive23
- supportiveness26
- susceptiveness26
- susceptivities25
- tergiversating23
- tergiversation21
- tergiversators20
- transformative25
- transitiveness20
- transitivities19
- transmissivity24
- trivialization29
- ultracivilized34
- ultraexclusive32
- ultrasensitive21
- unambivalently31
- unappreciative29
- unattractively26
- unchivalrously30
- unconstructive28
- universalistic24
- universalities21
- universalizing33
- unresponsively27
- vasoactivities25
- vegetativeness25
- vindictiveness28
- vituperatively29
- vivisectionist26