impudence vs chutzpah

impudence and chutzpah both are nouns.

Word	Noun	Adjective	Verb	Adverb
impudence	Yes	No	No	No
chutzpah	Yes	No	No	No

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

impudence: the trait of being rude and impertinent; inclined to take liberties
chutzpah: (Yiddish) unbelievable gall; insolence; audacity

Other hyponyms of impudence include chutzpa, hutzpah.

impudence (noun)	chutzpah (noun)
the trait of being rude and impertinent; inclined to take liberties	(Yiddish) unbelievable gall; insolence; audacity
an impudent statement