FASTEST is a playable word

fast Scrabble® Dictionary

adjective
faster, fastest
moving or able to move quickly
verb
fasted, fasting, fasts
to abstain from eating

96 Playable Words can be made from "FASTEST"

   2-Letter Words (10 found)

   3-Letter Words (25 found)

   6-Letter Words (6 found)

   7-Letter Words (1 found)