impertinent vs irreverent

impertinent and irreverent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impertinent	No	Yes	No	No
irreverent	No	Yes	No	No

As adjectives, impertinent and irreverent are synonyms defined as:

impertinent and irreverent: characterized by a lightly pert and exuberant quality

Other synonyms of impertinent include pert, saucy.

impertinent (adjective)	irreverent (adjective)
improperly forward or bold	showing lack of due respect or veneration
not pertinent to the matter under consideration	not revering god
characterized by a lightly pert and exuberant quality	characterized by a lightly pert and exuberant quality