exacting vs exigent

exacting and exigent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
exacting	No	Yes	No	No
exigent	No	Yes	No	No

As adjectives, exacting and exigent are synonyms defined as:

exacting (adjective)	exigent (adjective)
having complicated nutritional requirements; especially growing only in special artificial cultures	requiring precise accuracy
requiring precise accuracy	demanding attention
severe and unremitting in making demands