SALLOWEST is a playable word

sallow Scrabble® Dictionary

adjective
sallower, sallowest
of a sickly yellowish color
(adverb) sallowly
verb
sallowed, sallowing, sallows
to make sallow
315 Playable Words can be made from "SALLOWEST"
   2-Letter Words (20 found)
   9-Letter Words (1 found)