clumsy vs unwieldy

clumsy and unwieldy both are adjectives.

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

As adjectives, clumsy and unwieldy are synonyms defined as:

Other synonyms of clumsy include clunky, gawky, ungainly.

clumsy (adjective)	unwieldy (adjective)
lacking grace in movement or posture	difficult to use or handle or manage because of size or weight or shape
not elegant or graceful in expression	lacking grace in movement or posture
showing lack of skill or aptitude	difficult to work or manipulate
difficult to handle or manage especially because of shape