impish vs mischievous

impish and mischievous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impish	No	Yes	No	No
mischievous	No	Yes	No	No

As adjectives, impish and mischievous are synonyms defined as:

Other synonyms of impish include arch, implike, pixilated, prankish, puckish, wicked.

impish (adjective)	mischievous (adjective)
naughtily or annoyingly playful	deliberately causing harm or damage
	naughtily or annoyingly playful