insult vs vituperation

insult and vituperation both are nouns.

Word	Noun	Adjective	Verb	Adverb
insult	Yes	No	Yes	No
vituperation	Yes	No	No	No

As nouns, vituperation is a hyponym of insult; that is, vituperation is a word with a more specific, narrower meaning than insult:

insult: a rude expression intended to offend or hurt
vituperation: abusive or venomous language used to express blame or censure or bitter deep-seated ill will

Other hyponyms of insult include low blow, billingsgate, scurrility, cut, stinger, invective, vitriol.

insult (noun)	vituperation (noun)
a deliberately offensive act or something producing the effect of deliberate disrespect	abusive or venomous language used to express blame or censure or bitter deep-seated ill will
a rude expression intended to offend or hurt

insult (verb)	vituperation (verb)
treat, mention, or speak to rudely