10 letters
- splintered16
- sportiness14
- springiest16
- springtide17
- standishes14
- standpipes18
- steadiness12
- stepsister13
- stereopsis13
- storeships15
- stridences15
- stripeless14
- stupidness16
- sturdiness13
- superspies17
- suppressed18
- suspenders16
- swineherds17
- tendresses12
- terpenoids15
- therapsids16
- thinnesses14
- threnodies14
- tidinesses12
- tininesses12
- transships16
- trashiness13
- trendiness13
- trespassed14
- trignesses13
- trimnesses14
- unstressed13
- uppishness20
- uppitiness18
- wirinesses14