critical vs discerning

critical and discerning both are adjectives.

Word	Noun	Adjective	Verb	Adverb
critical	No	Yes	No	No
discerning	No	Yes	No	No

critical (adjective)	discerning (adjective)
marked by a tendency to find and call attention to errors and flaws	having or revealing keen insight and good judgment
characterized by careful evaluation and judgment	able to make or detect effects of great subtlety; sensitive
being in or verging on a state of crisis or emergency	quick to understand
at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction	unobtrusively perceptive and sympathetic
of or involving or characteristic of critics or criticism
forming or having the nature of a turning point or crisis
urgently needed; absolutely necessary