10 letters
- rainspouts15
- rationales12
- reappoints17
- reasonings14
- reparation14
- repulsions16
- reputation15
- resonating14
- resumption18
- resupinate15
- reunionist13
- rotundness14
- ruinations13
- safranines15
- sanatorium15
- sanbenitos15
- sanitaries11
- santolinas13
- sapogenins17
- saprolites14
- saturation12
- sauntering15
- savouriest15
- sectarians14
- senatorial12
- senatorian12
- senhoritas13
- sensations12
- separating16
- separation14
- separatism16
- separatist13
- separators13
- serotinous12
- serotonins12
- serrations11
- signatures14
- sopraninos15
- sovranties15
- sparteines14
- spearmints17
- spinnakers19
- spinnerets15
- spirituous15
- sportiness14
- sporulates15
- stannaries12
- stationers11
- statuaries11
- stentorian12
- stramonies14
- stupendous17
- subreption18
- subroutine16
- suctorians15
- sudatories12
- sunbonnets17
- supergiant17
- supernovas19
- superscout18
- supersonic18
- supertonic18
- supination16
- supinators15
- suppurates18
- suspension16
- sustainers12
- tarnations12
- tarpaulins16
- tearstains11
- tensioners12
- thorniness14
- transients12
- transpires14
- transposed15
- transposes14
- transposon15
- transshape16
- transsonic15
- trapanning18
- treasonous12
- trepanning18
- trousseaus12
- trousseaux19
- turnstones13
- turquoises21
- tyrannises14
- tyrosinase13
- unapparent19
- uncanniest17
- underpants17
- underspins17
- unfairness16
- unitarians13
- unneurotic17
- unpastoral16
- unpleasant17
- unpregnant19
- unripeness16
- unruliness15
- unsanitary15
- unsaturate13
- unsoundest15
- unstoppers18
- unstrained14
- untrussing16
- unwariness16
- uraninites13
- urinations13
- urokinases16
- usurpation16
- vernations16
- waitperson17
- wantonness16