predator vs assailant

predator and assailant both are nouns.

Word	Noun	Adjective	Verb	Adverb
predator	Yes	No	No	No
assailant	Yes	No	No	No

As nouns, assailant is a hypernym of predator; that is, assailant is a word with a broader meaning than predator:

Other hypernyms of predator include aggressor, assaulter, attacker.

predator (noun)	assailant (noun)
any animal that lives by preying on other animals	someone who attacks
someone who attacks in search of booty