10 letters
- segregants15
- segregated15
- seignorage15
- separating16
- septenarii14
- septennial16
- serenading15
- serpentine15
- serpigines16
- sharpening19
- slandering16
- smartening17
- sniggering18
- snippetier17
- sparteines14
- spattering16
- speciating19
- spideriest14
- spinnerets15
- spinneries15
- splintered16
- spriggiest17
- springeing19
- springhead19
- springiest16
- springings19
- springtail17
- springtide17
- springtime19
- staggering17
- stampeding20
- steamering16
- steepening17
- stewarding17
- stingarees13
- straitened12
- strandline14
- strangered14
- strangling17
- stringendo15
- stringings16
- superagent17
- supergiant17
- supinating18
- tailenders13
- tangencies17
- tangerines14
- tapestried14
- tarnishing16
- tenantries12
- terpenoids15
- tetanising14
- tragedians14
- transgenic17
- transience15
- transiting14
- transpired15
- transuding16
- trapnested15
- trendiness13
- trepanning18
- trephining19
- triennials13
- tripinnate15
- tyrannised15
- underpants17
- uninspired17
- unparented17
- unreadiest13
- unsteadier13
- unstrained14
- untreading16
- upstanding19
- uraninites13
- venerating18
- vertigines17
- wanderings18
- wingspread20