prevail vs predominate

prevail is not an adjective while predominate is an adjective.

Word	Noun	Adjective	Verb	Adverb
prevail	No	No	Yes	No
predominate	No	Yes	Yes	No

As verbs, prevail and predominate are synonyms defined as:

prevail and predominate: be larger in number, quantity, power, status or importance

Other synonyms of prevail include dominate, reign, rule.

prevail (adjective)	predominate (adjective)
	having superior power and influence

prevail (verb)	predominate (verb)
use persuasion successfully	be larger in number, quantity, power, status or importance
prove superior	appear very large or occupy a commanding position
continue to exist
be valid, applicable, or true
be larger in number, quantity, power, status or importance