infelicitous vs cumbersome

infelicitous and cumbersome both are adjectives.

Word	Noun	Adjective	Verb	Adverb
infelicitous	No	Yes	No	No
cumbersome	No	Yes	No	No

infelicitous (adjective)	cumbersome (adjective)
not appropriate in application; defective	not elegant or graceful in expression
marked by or producing unhappiness	difficult to handle or use especially because of size or weight