CAUSAL is a playable word

causal Scrabble® Dictionary

noun
pl. causals
a word expressing cause or reason
23 Playable Words can be made from "CAUSAL"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (6 found)
   5-Letter Words (1 found)
   6-Letter Words (2 found)