spitefulness vs venom

spitefulness and venom both are nouns.

Word	Noun	Adjective	Verb	Adverb
spitefulness	Yes	No	No	No
venom	Yes	No	No	No

As nouns, spitefulness and venom are synonyms defined as:

Other synonyms of spitefulness include malice, maliciousness, spite.

spitefulness (noun)	venom (noun)
malevolence by virtue of being malicious or spiteful or nasty	feeling a need to see others suffer
feeling a need to see others suffer	toxin secreted by animals; secreted by certain snakes and poisonous insects (e.g., spiders and scorpions)