irritation vs vexation

irritation and vexation both are nouns.

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

As nouns, irritation and vexation are synonyms defined as:

Other synonyms of irritation include annoyance, annoying.

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

Other hypernyms of irritation include annoyance, chafe.

As nouns, irritation and vexation are synonyms defined as:

irritation and vexation: the psychological state of being irritated or annoyed

Other synonyms of irritation include annoyance, botheration.

irritation (noun)	vexation (noun)
unfriendly behavior that causes anger or resentment	the act of troubling or annoying someone
the act of troubling or annoying someone	something or someone that causes anxiety; a source of unhappiness
an uncomfortable feeling of mental painfulness or distress	anger produced by some annoying irritation
a sudden outburst of anger	the psychological state of being irritated or annoyed
the psychological state of being irritated or annoyed
the neural or electrical arousal of an organ or muscle or gland
(pathology) abnormal sensitivity to stimulation