ZESTIEST is a playable word

zesty Scrabble® Dictionary

adjective
zestier, zestiest
marked by zest
(adverb) zestily
59 Playable Words can be made from "ZESTIEST"
   2-Letter Words (7 found)
   3-Letter Words (17 found)
   4-Letter Words (19 found)
   5-Letter Words (10 found)
   6-Letter Words (5 found)
   8-Letter Words (1 found)