MIRTHFUL is a playable word

mirth Scrabble® Dictionary

noun
pl. mirths
spirited gaiety
(adjective) mirthful
64 Playable Words can be made from "MIRTHFUL"
   2-Letter Words (11 found)
   3-Letter Words (21 found)
   4-Letter Words (19 found)
   5-Letter Words (12 found)
   8-Letter Words (1 found)