cheekiness vs impertinence

cheekiness and impertinence both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheekiness	Yes	No	No	No
impertinence	Yes	No	No	No

As nouns, cheekiness and impertinence are synonyms defined as:

cheekiness and impertinence: the trait of being rude and impertinent; inclined to take liberties

Other synonyms of cheekiness include crust, freshness, gall, impudence, insolence.

cheekiness (noun)	impertinence (noun)
the trait of being rude and impertinent; inclined to take liberties	inappropriate playfulness
	the trait of being rude and impertinent; inclined to take liberties
	an impudent statement