aggravation vs vexation

aggravation and vexation both are nouns.

Word	Noun	Adjective	Verb	Adverb
aggravation	Yes	No	No	No
vexation	Yes	No	No	No

As nouns, vexation is a hypernym of aggravation; that is, vexation is a word with a broader meaning than aggravation:

Other hypernyms of aggravation include annoyance, chafe.

aggravation (noun)	vexation (noun)
unfriendly behavior that causes anger or resentment	the act of troubling or annoying someone
action that makes a problem or a disease (or its symptoms) worse	something or someone that causes anxiety; a source of unhappiness
an exasperated feeling of annoyance	anger produced by some annoying irritation
	the psychological state of being irritated or annoyed