FIZZIEST is a playable word

fizzy Scrabble® Dictionary

adjective
fizzier, fizziest
fizzing
(adverb) fizzily
52 Playable Words can be made from "FIZZIEST"
   2-Letter Words (10 found)
   3-Letter Words (19 found)
   4-Letter Words (15 found)
   5-Letter Words (4 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)