critical marked by a tendency to find and call attention to errors and flaws; "a critical attitude"
discriminating showing or indicating careful judgment and discernment especially in matters of taste; "the discriminating eye of the connoisseur"
percipient,
clear readily apparent to the mind; "a clear and present danger"; "a clear explanation"; "a clear case of murder"; "a clear indication that she was angry"; "gave us a clear idea of human nature"
clear-eyed,
clear-sighted,
perspicacious mentally acute or penetratingly discerning; "too clear-eyed not to see what problems would follow"; "chaos could be prevented only by clear-sighted leadership"; "much too perspicacious to be taken in by so spurious an argument"
discerning -
unobtrusively perceptive and sympathetic; "a discerning editor"; "a discreet silence"
tactful showing skill and sensitivity in dealing with people; "by diplomatic conduct he avoided antagonizing anyone"; "a tactful way of correcting someone"; "the agency got the kid-glove treatment on Capitol Hill"
discerning -
able to make or detect effects of great subtlety; sensitive; "discerning taste"; "a discerning eye for color"
discerning -
quick to understand; "a kind and apprehensive friend"- Nathaniel Hawthorne
