impede vs stunt

impede is not a noun while stunt is a noun.

Word	Noun	Adjective	Verb	Adverb
impede	No	No	Yes	No
stunt	Yes	No	Yes	No

As verbs, stunt is a hyponym of impede; that is, stunt is a word with a more specific, narrower meaning than impede:

Other hyponyms of impede include block, close up, impede, jam, obstruct, obturate, occlude, inhibit, repress, interfere, set back, hobble.

impede (noun)	stunt (noun)
	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

impede (verb)	stunt (verb)
block passage through	perform a stunt or stunts
be a hindrance or obstacle to	to look good
	check the growth or development of