clumsy vs inept

clumsy and inept both are adjectives.

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

As adjectives, clumsy and inept are synonyms defined as:

Other synonyms of clumsy include awkward, cumbersome, ill-chosen, inapt.

clumsy (adjective)	inept (adjective)
lacking grace in movement or posture	generally incompetent and ineffectual
not elegant or graceful in expression	not elegant or graceful in expression
showing lack of skill or aptitude	revealing lack of perceptiveness or judgment or finesse
difficult to handle or manage especially because of shape