clunky vs clumsy

clunky and clumsy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
clunky	No	Yes	No	No
clumsy	No	Yes	No	No

As adjectives, clunky and clumsy are synonyms defined as:

Other synonyms of clunky include gawky, ungainly, unwieldy.

clunky (adjective)	clumsy (adjective)
making a clunking sound	lacking grace in movement or posture
lacking grace in movement or posture	not elegant or graceful in expression
	showing lack of skill or aptitude
	difficult to handle or manage especially because of shape