SOONEST is a playable word

soon Scrabble® Dictionary

adverb
sooner, soonest
in the near future
(adjective) soonish
85 Playable Words can be made from "SOONEST"
   2-Letter Words (11 found)
   3-Letter Words (24 found)
   6-Letter Words (7 found)
   7-Letter Words (1 found)