Discernment, discrimination, insight, perception: The ability to judge character and accurately determine who and what you are dealing with are paramount to success and happiness.


Discernment - Synonyms and More from the Free Merriam-Webster Dictionary:

the ability to understand inner qualities or relationships <the discernment to know when someone is a true friend>

Synonyms discernment, insight, perception, perceptiveness, perceptivity, sagaciousness, sagacity, sageness, sapience

Related Words acuity, acumen, astuteness, clear-sightedness, keenness, penetration, percipience, perspicacity, sensitivity, understanding; appreciation, apprehension, comprehension, grasp; brain(s), braininess, brightness, brilliance, canniness, cleverness, gray matter, intellect, intelligence, judgment (or judgement), mentality, power, reason, sense, smartness, wit; discrimination, foresight, foresightedness, judiciousness, prudence, sanity; logic, rationality

Near Antonyms density, dullness (also dulness), obtuseness; brainlessness, folly, foolishness, idiocy, imbecility, mindlessness, silliness, simplemindedness, simpleness, stupidity, witlessness; illogic, irrationality, unreasonableness, unsoundness; craziness, insanity, lunacy, madness; preposterousness, senselessness, silliness, zaniness