discreet vs discerning

discreet and discerning both are adjectives.

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

As adjectives, discreet and discerning are synonyms defined as:

discreet (adjective)	discerning (adjective)
marked by prudence or modesty and wise self-restraint	having or revealing keen insight and good judgment
heedful of potential consequences	able to make or detect effects of great subtlety; sensitive
unobtrusively perceptive and sympathetic	quick to understand
	unobtrusively perceptive and sympathetic