SPIKIER is a playable word

spiky Scrabble® Dictionary

adjective
spikier, spikiest
resembling a spike
(adverb) spikily
80 Playable Words can be made from "SPIKIER"
   2-Letter Words (8 found)
   3-Letter Words (22 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)