10 letters
- stodginess14
- strictness14
- stridences15
- stupendous17
- stupidness16
- sturdiness13
- subindices19
- subsection18
- subsidence19
- subsidises15
- subsistent15
- subspecies20
- succession18
- suchnesses17
- sundresses13
- supersonic18
- supertonic18
- supineness16
- susceptive21
- suspecting20
- suspenders16
- suspensers15
- suspension16
- suspensive19
- suspensors15
- suspicions18
- suspicious18
- syndesises14
- tautnesses12
- tectonisms17
- tenacities14
- tendonitis13
- tepidities14
- terpenoids15
- testaceous14
- testudines13
- tetchiness16
- teutonized22
- teutonizes21
- theodicies16
- tidinesses12
- tininesses12
- tinnituses13
- titanesses11
- toluidines14
- tonicities14
- touchiness17
- tricotines14
- tricuspids18
- trisection14
- trustiness12
- tutoresses11
- unassisted13
- uncorseted16
- undomestic19
- unescorted16
- unesthetic17
- unscripted19
- unsteadies13
- unstitched18
- unstitches17
- unstressed13
- unstresses12
- untidiness14
- uppitiness18
- venosities15
- voidnesses16