10 letters
- progestins16
- proselytes16
- prostheses15
- prosthesis15
- proteinase14
- protensive18
- psalteries14
- puninesses16
- purenesses15
- raptnesses14
- realnesses12
- reasonless12
- recensions15
- recentness15
- receptions17
- recessions14
- redeposits14
- redisposes14
- reelection15
- reenlisted13
- reinspects17
- relentless13
- relicenses15
- remoistens14
- remoteness14
- reopenings17
- repellents16
- repletions15
- repolishes16
- represents14
- repression14
- repulsions16
- resections14
- reserpines14
- resistless11
- resolvents16
- respondent16
- responsive18
- retentions12
- rhinestone14
- rifenesses14
- ringtosses13
- ripenesses14
- ropinesses14
- rosinesses11
- rottenness12
- saprolites14
- sclerotins15
- secretions14
- seemliness15
- selections15
- selectness15
- sensations12
- sensiblest15
- sentiences15
- sentineled14
- sepiolites14
- septennial16
- sereneness12
- serenities11
- serosities10
- serotonins12
- serpentine15
- shorelines14
- silentness13
- siltstones12
- simpleness18
- simpletons18
- singleness15
- singletons15
- singletree14
- sleepiness15
- sleepovers18
- slenderest13
- sloppiness18
- smelteries14
- snootiness12
- snottiness12
- solemnness16
- solenesses12
- solonetses12
- sonneteers12
- sorenesses11
- sortileges13
- sparteines14
- speediness15
- speedsters14
- spinnerets15
- spinneries15
- spinsterly17
- spiritless14
- spleeniest15
- spleenwort18
- splenetics18
- splintered16
- sponginess17
- sportiness14
- spottiness14
- steeliness12
- steepening17
- stencilers15
- stepsister13
- stereopses13
- stereopsis13
- sternposts14
- stoneflies15
- storeships15
- storminess14
- strifeless14
- stringless14
- stripeless14
- sultriness13
- superelite15
- supineness16
- suspension16
- svelteness16
- telegonies14
- telephoner17
- telephones17
- telescopes17
- teliospore14
- temporises16
- tenderloin14
- tenderness13
- tendresses12
- tensioners12
- terpenoids15
- terpineols15
- terreplein15
- thinnesses14
- thorniness14
- threonines14
- tininesses12
- transposes14
- trendiness13
- treponemes17
- trignesses13
- trimnesses14
- truenesses12
- unripeness16
- vespertine18
- vilenesses16
- westerlies14
- westernise14
- wirelesses14
- wornnesses15