SMIRKIEST is a playable word

smirky Scrabble® Dictionary

adjective
smirkier, smirkiest
smirking
(adverb) smirkily
227 Playable Words can be made from "SMIRKIEST"
   2-Letter Words (13 found)
   3-Letter Words (32 found)
   8-Letter Words (2 found)
   9-Letter Words (2 found)