PLUMMEST is a playable word

plum Scrabble® Dictionary

noun
pl. plums
a fleshy fruit
adjective
plummer, plummest
highly desirable
130 Playable Words can be made from "PLUMMEST"
   2-Letter Words (13 found)
   6-Letter Words (5 found)
   7-Letter Words (3 found)
   8-Letter Words (2 found)