9 letters
- restraint10
- retainers10
- retirants10
- retracted13
- retrained11
- retreated10
- retroacts12
- retrocede13
- retrodict13
- roistered10
- romancers16
- romanised14
- romantics16
- rotameter12
- sarcomere15
- scattered13
- scatterer12
- secretion13
- sectioned14
- seedeater10
- semierect15
- serenader11
- serration10
- smartened14
- smattered13
- smatterer12
- sonicated14
- stationed11
- stationer10
- steamered13
- streamier12
- streetcar12
- stridence14
- taconites13
- tectonism16
- teentsier10
- tenderers11
- tenderest11
- tenorites10
- teredines11
- terminate13
- ternaries10
- tetanised11
- tetracids13
- tetramers12
- timecards16
- tormented14
- tormenter13
- torridest10
- traceried13
- traceries12
- tractions13
- tradesmen14
- transited11
- trecentos13
- trematode13
- trendiest11
- tricornes13
- trimester12
- trimeters12
- trisected13
- trisector12