impostor vs trickster

impostor and trickster both are nouns.

Word	Noun	Adjective	Verb	Adverb
impostor	Yes	No	No	No
trickster	Yes	No	No	No

As nouns, trickster is a hypernym of impostor; that is, trickster is a word with a broader meaning than impostor:

Other hypernyms of impostor include beguiler, cheat, cheater, deceiver, slicker.

impostor (noun)	trickster (noun)
a person who makes deceitful pretenses	someone who plays practical jokes on others
	someone who leads you to believe something that is not true
	a mischievous supernatural being found in the folklore of many primitive people; sometimes distinguished by prodigious biological drives and exaggerated bodily parts