displeasure vs vexation

displeasure and vexation both are nouns.

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

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

displeasure: the feeling of being displeased or annoyed or dissatisfied with someone or something
vexation: anger produced by some annoying irritation

Other hypernyms of displeasure include annoyance, chafe, dissatisfaction.

displeasure (noun)	vexation (noun)
the feeling of being displeased or annoyed or dissatisfied with someone or something	the act of troubling or annoying someone
	something or someone that causes anxiety; a source of unhappiness
	anger produced by some annoying irritation
	the psychological state of being irritated or annoyed