vitriolic vs acerb

vitriolic and acerb both are adjectives.

Word	Noun	Adjective	Verb	Adverb
vitriolic	No	Yes	No	No
acerb	No	Yes	No	No

As adjectives, vitriolic and acerb are synonyms defined as:

Other synonyms of vitriolic include acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent.

vitriolic (adjective)	acerb (adjective)
of a substance, especially a strong acid; capable of destroying or eating away by chemical action	sour or bitter in taste
harsh or corrosive in tone	harsh or corrosive in tone