6 letters · 13 points in Scrabble
adjective lacking grace in movement or posture
adjective not elegant or graceful in expression
adjective difficult to handle or manage especially because of shape
originPossibly from an alteration of clumsed (“benumbed”) or from clumse (“a stupid fellow; lout”) + -y. More at clumse.
Etymology from Wiktionary, CC BY-SA 3.0