SWEETEST is a playable word

sweet Scrabble® Dictionary

adjective
sweeter, sweetest
pleasing to the taste
noun
pl. sweets
something that is sweet
60 Playable Words can be made from "SWEETEST"
   2-Letter Words (5 found)
   3-Letter Words (13 found)
   5-Letter Words (10 found)
   6-Letter Words (9 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)