awkwardness vs cumbersomeness

awkwardness and cumbersomeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
awkwardness	Yes	No	No	No
cumbersomeness	Yes	No	No	No

As nouns, awkwardness and cumbersomeness are synonyms defined as:

awkwardness and cumbersomeness: trouble in carrying or managing caused by bulk or shape

Other synonyms of awkwardness include unwieldiness.

awkwardness (noun)	cumbersomeness (noun)
the carriage of someone whose movements and posture are ungainly or inelegant	trouble in carrying or managing caused by bulk or shape
the quality of an embarrassing situation
trouble in carrying or managing caused by bulk or shape
the inelegance of someone stiff and unrelaxed (as by embarrassment)
unskillfulness resulting from a lack of training