acrobatic feat vs stunt

acrobatic feat and stunt both are nouns.

Word	Noun	Adjective	Verb	Adverb
acrobatic feat	Yes	No	No	No
stunt	Yes	No	Yes	No

As nouns, stunt is a hypernym of acrobatic feat; that is, stunt is a word with a broader meaning than acrobatic feat:

acrobatic feat: a stunt performed by an acrobat
stunt: a difficult or unusual or dangerous feat; usually done to gain attention

acrobatic feat (noun)	stunt (noun)
a stunt performed by an acrobat	a difficult or unusual or dangerous feat; usually done to gain attention
	a creature (especially a whale) that has been prevented from attaining full growth

acrobatic feat (verb)	stunt (verb)
	perform a stunt or stunts
	to look good
	check the growth or development of