10 letters
- spooferies16
- sportiness14
- spottiness14
- stationers11
- stepsister13
- stereopsis13
- sternposts14
- stertorous11
- stiffeners17
- stoneflies15
- stoneworts14
- storefront14
- storehouse13
- storminess14
- straitness11
- strictness14
- strifeless14
- strikeouts15
- strontiums15
- struthious14
- stuffiness18
- sturdiness13
- subentries15
- subroutine16
- subsistent15
- suffusions19
- sultriness13
- sundresses13
- sunstrokes16
- surefooted15
- surenesses12
- surfeiters14
- suspensers15
- suspensors15
- sustainers12
- synostoses13
- synostosis13
- tartnesses11
- tautnesses12
- tenderfoot15
- tenebrious15
- tenebrists14
- tenotomies14
- tensioners12
- terminuses15
- tessituras11
- testifiers13
- testudines13
- teutonizes21
- titanesses11
- tonometers14
- torosities10
- tourniquet22
- transfuses15
- treasonous12
- trignesses13
- trimnesses14
- trousseaus12
- truenesses12
- trusteeing14
- trustiness12
- turnstiles13
- turnstones13
- turquoises21
- tutoresses11
- unforested16
- uniformest18
- uninterest13
- unquietest22
- unsafeties15
- unstressed13
- unstresses12
- usefulness17
- vitreouses15