impertinent vs wise

impertinent is not a noun while wise is a noun.

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

As adjectives, impertinent and wise are synonyms defined as:

Other synonyms of impertinent include fresh, impudent, overbold, sassy, saucy, smart.

impertinent (noun)	wise (noun)
	a way of doing or being

impertinent (adjective)	wise (adjective)
improperly forward or bold	having or prompted by wisdom or discernment
not pertinent to the matter under consideration	improperly forward or bold
characterized by a lightly pert and exuberant quality	evidencing the possession of inside information
	marked by the exercise of good judgment or common sense in practical matters