KNOBBLIEST is a playable word

knobbly Scrabble® Dictionary

adjective
knobblier, knobbliest
having very small knobs
454 Playable Words can be made from "KNOBBLIEST"
   2-Letter Words (25 found)
   3-Letter Words (80 found)
   8-Letter Words (5 found)
   9-Letter Words (1 found)
   10-Letter Words (1 found)