virulent vs sulfurous

virulent and sulfurous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
virulent	No	Yes	No	No
sulfurous	No	Yes	No	No

As adjectives, virulent and sulfurous are synonyms defined as:

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

virulent (adjective)	sulfurous (adjective)
infectious; having the ability to cause disease	of or related to or containing sulfur or derived from sulfur
extremely poisonous or injurious; producing venom	characterized by oppressive heat and humidity
harsh or corrosive in tone	harsh or corrosive in tone