venomous vs deadly

venomous and deadly both are adjectives.

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

As adjectives, venomous and deadly are synonyms defined as:

Other synonyms of venomous include virulent.

venomous (adjective)	deadly (adjective)
marked by deep ill will; deliberately harmful	exceedingly harmful
extremely poisonous or injurious; producing venom	extremely poisonous or injurious; producing venom
	involving loss of divine grace or spiritual death
	(of a disease) having a rapid course and violent effect
	causing or capable of causing death
	of an instrument of certain death

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