require vs exact

require is not an adjective while exact is an adjective.

Word	Noun	Adjective	Verb	Adverb
require	No	No	Yes	No
exact	No	Yes	Yes	No

As verbs, exact is a hyponym of require; that is, exact is a word with a more specific, narrower meaning than require:

Other hyponyms of require include claim, take, govern, draw, cost, cry for, cry out for, compel.

require (adjective)	exact (adjective)
	marked by strict and particular and complete accordance with fact
	(of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth; strictly correct
	lacking compromising or mitigating elements

require (verb)	exact (verb)
make someone do something	claim as due or just
consider obligatory; request and expect	take as an undesirable consequence of some event or state of affairs
have need of
require as useful, just, or proper