mordacious vs biting

mordacious and biting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mordacious	No	Yes	No	No
biting	No	Yes	No	No

As adjectives, mordacious and biting are synonyms defined as:

Other synonyms of mordacious include barbed, nipping, pungent.

mordacious (adjective)	biting (adjective)
biting or given to biting	causing a sharply painful or stinging sensation; used especially of cold
capable of wounding	capable of wounding