harassed vs vexed

harassed and vexed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
harassed	No	Yes	No	No
vexed	No	Yes	No	No

As adjectives, harassed and vexed are synonyms defined as:

harassed and vexed: troubled persistently especially with petty annoyances

Other synonyms of harassed include annoyed, harried, pestered.

harassed (adjective)	vexed (adjective)
troubled persistently especially with petty annoyances	causing difficulty in finding an answer or solution; much disputed
	troubled persistently especially with petty annoyances