blistering vs caustic

blistering and caustic both are nouns.

Word	Noun	Adjective	Verb	Adverb
blistering	Yes	Yes	No	No
caustic	Yes	Yes	No	No

As adjectives, blistering and caustic are synonyms defined as:

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

blistering (noun)	caustic (noun)
the formation of vesicles in or beneath the skin	the envelope of light rays reflected or refracted by a curved surface or object
	any chemical substance that burns or destroys living tissue

blistering (adjective)	caustic (adjective)
very fast; capable of quick response and great speed	of a substance, especially a strong acid; capable of destroying or eating away by chemical action
hot enough to raise (or as if to raise) blisters	harsh or corrosive in tone
harsh or corrosive in tone