"discerning" in the verb sense
1. spot, recognize, recognise, distinguish, discern, pick out, make out, tell apart
detect with the senses
"The fleeing convicts were picked out of the darkness by the watchful prison guards"
"I can't make out the faces in this photograph"
"discerning" in the adjective sense
having or revealing keen insight and good judgment
"a discerning critic"
"a discerning reader"
2. discerning, discreet
unobtrusively perceptive and sympathetic
"a discerning editor"
"a discreet silence"
3. apprehensive, discerning
quick to understand
"a kind and apprehensive friend"- Nathaniel Hawthorne
able to make or detect effects of great subtlety sensitive
"a discerning eye for color"
Source: WordNet® (An amazing lexical database of English)
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