SMOLDERING is a playable word

smolder Scrabble® Dictionary

verb
smoldered, smoldering, smolders
to burn with no flame
910 Playable Words can be made from "SMOLDERING"
   2-Letter Words (30 found)
   3-Letter Words (114 found)
   9-Letter Words (5 found)
   10-Letter Words (1 found)