gracelessness vs clumsiness

gracelessness and clumsiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gracelessness	Yes	No	No	No
clumsiness	Yes	No	No	No

As nouns, clumsiness is a hypernym of gracelessness; that is, clumsiness is a word with a broader meaning than gracelessness:

gracelessness: an unpleasant lack of grace in carriage or form or movement or expression
clumsiness: the carriage of someone whose movements and posture are ungainly or inelegant

Other hypernyms of gracelessness include awkwardness.

As nouns, gracelessness and clumsiness are synonyms defined as:

gracelessness and clumsiness: the inelegance of someone stiff and unrelaxed (as by embarrassment)

Other synonyms of gracelessness include awkwardness, stiffness.

gracelessness (noun)	clumsiness (noun)
an unpleasant lack of grace in carriage or form or movement or expression	the carriage of someone whose movements and posture are ungainly or inelegant
the inelegance of someone stiff and unrelaxed (as by embarrassment)	the inelegance of someone stiff and unrelaxed (as by embarrassment)
	unskillfulness resulting from a lack of training