psychological science vs proactive

psychological science is a noun but proactive is not a noun.

Word	Noun	Adjective	Verb	Adverb
psychological science	Yes	No	No	No
proactive	No	Yes	No	No

psychological science (noun)	proactive (noun)
the science of mental life

psychological science (adjective)	proactive (adjective)
	descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently
	(of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens