deadly vs virulent

deadly and virulent both are adjectives.

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

As adjectives, deadly and virulent are synonyms defined as:

Other synonyms of deadly include venomous.

deadly (adjective)	virulent (adjective)
exceedingly harmful	infectious; having the ability to cause disease
extremely poisonous or injurious; producing venom	extremely poisonous or injurious; producing venom
involving loss of divine grace or spiritual death	harsh or corrosive in tone
(of a disease) having a rapid course and violent effect
causing or capable of causing death
of an instrument of certain death

deadly (adverb)	virulent (adverb)
(used as intensives) excessively
as if dead