BITTIER is a playable word

bitty Scrabble® Dictionary

adjective
bittier, bittiest
tiny
(adverb) bittily
37 Playable Words can be made from "BITTIER"
   2-Letter Words (8 found)
   3-Letter Words (10 found)
   4-Letter Words (10 found)
   5-Letter Words (7 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)