FREQUENTEST is a playable word

frequent Scrabble® Dictionary

adjective
frequenter, frequentest
occurring again and again
verb
frequented, frequenting, frequents
to be in or at often
273 Playable Words can be made from "FREQUENTEST"
   2-Letter Words (13 found)
   8-Letter Words (4 found)
   9-Letter Words (3 found)
   11-Letter Words (1 found)