clumsiness vs rusticity

clumsiness and rusticity both are nouns.

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

As nouns, rusticity is a hyponym of clumsiness; that is, rusticity is a word with a more specific, narrower meaning than clumsiness:

clumsiness: the inelegance of someone stiff and unrelaxed (as by embarrassment)
rusticity: the quality of being rustic or gauche

Other hyponyms of clumsiness include woodenness, gaucherie.

clumsiness (noun)	rusticity (noun)
the carriage of someone whose movements and posture are ungainly or inelegant	the quality of being rustic or gauche
the inelegance of someone stiff and unrelaxed (as by embarrassment)
unskillfulness resulting from a lack of training