impede vs interfere

impede and interfere both are verbs.

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

As verbs, interfere is a hyponym of impede; that is, interfere 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, set back, hobble, stunt.

impede (verb)	interfere (verb)
block passage through	get involved, so as to alter or hinder an action, or through force or threat of force
be a hindrance or obstacle to	come between so as to be hindrance or obstacle