UNTHAW is a playable word

unthaw Scrabble® Dictionary

verb
unthawed, unthawing, unthaws
to thaw
43 Playable Words can be made from "UNTHAW"
   2-Letter Words (11 found)
   3-Letter Words (19 found)
   4-Letter Words (10 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)