acerbic vs blistering

acerbic is not a noun while blistering is a noun.

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

As adjectives, acerbic and blistering are synonyms defined as:

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

acerbic (noun)	blistering (noun)
	the formation of vesicles in or beneath the skin

acerbic (adjective)	blistering (adjective)
sour or bitter in taste	very fast; capable of quick response and great speed
harsh or corrosive in tone	hot enough to raise (or as if to raise) blisters
	harsh or corrosive in tone