GIGGLIEST is a playable word

giggly Scrabble® Dictionary

adjective
gigglier, giggliest
tending to giggle
88 Playable Words can be made from "GIGGLIEST"
   2-Letter Words (10 found)
   3-Letter Words (28 found)
   5-Letter Words (11 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)
   9-Letter Words (1 found)