recoil vs repercussion

recoil and repercussion both are nouns.

Word	Noun	Adjective	Verb	Adverb
recoil	Yes	No	Yes	No
repercussion	Yes	No	No	No

As nouns, recoil and repercussion are synonyms defined as:

Other synonyms of recoil include backlash, rebound.

recoil (noun)	repercussion (noun)
a movement back from an impact	a movement back from an impact
the backward jerk of a gun when it is fired	a remote or indirect consequence of some action

recoil (verb)	repercussion (verb)
spring back, as from a forceful thrust
draw back, as with fear or pain
spring back; spring away from an impact
come back to the originator of an action with an undesired effect