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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | alert, awake |
| Synonyms: | able to recognize, acquainted, aesthetic, alive to, apperceptive, apprised, assured, attentive, au courant, aware, certain, cognizant, conversant, discerning, felt, hep to, in on, in right mind, informed, keen, knowing, known, mindful, noticing, noting, observing, on to, perceiving, percipient, recognizing, remarking, responsive, seeing, sensible, sensitive to, sentient, supraliminal, sure, understanding, vigilant, watchful, wise to, with it, witting |
| Notes: | conscience is the noun meaning 'a sense of right and wrong' while conscious is the adjective meaning 'aware of something, being awake' |
| Antonyms: | ignorant, impassive, indifferent, senseless, unaware, unconscious, unmindful, unresponsive |
| Main Entry: | discerning |
| Part of Speech: | adjective |
| Definition: | discriminating |
| Synonyms: | acute, astute, bright, brilliant, clear-sighted, clever, critical, gnostic, ingenious, insighted, insightful, intelligent, judicious, knowing, knowledgeable, penetrating, perceptive, percipient, perspicacious, piercing, sagacious, sage, sensitive, sharp, shrewd, subtle, wise |
| Antonyms: | disregardful, neglectful, negligent, overlooking, undiscerning, undiscriminating |
| Main Entry: | knowing |
| Part of Speech: | adjective |
| Definition: | experienced, aware |
| Synonyms: | alive, apprehensive, astute, awake, brainy, bright, brilliant, canny, clever, cognizant, competent, conscious, conversant, cool*, crack*, deliberate, discerning, expert, insightful, intelligent, intended, intentional, judicious, knowledgeable, observant, perceptive, percipient, qualified, quick, quick-witted, sagacious, sage, sensible, sentient, sharp, skillful, slick*, smart, sophic, sophisticated, tuned-in, vigilant, watchful, well-informed, wise, with-it, witting, worldly, worldly-wise |
| Antonyms: | inexperienced, unaware, uncognizant, unknowing |
* = informal/non-formal usage
| Main Entry: | perceptive |
| Part of Speech: | adjective |
| Definition: | alert, sensitive |
| Synonyms: | acute, astute, awake, aware, brainy, conscious, discerning, discreet, ear to the ground, gnostic, incisive, insighted, insightful, intuitive, judicious, keen, knowing, knowledgeable, knows what's what, observant, penetrating, penetrative, percipient, perspicacious, quick, rational, responsive, sagacious, sage, savvy*, sharp, sophic, tuned in, wise, wise to |
| Antonyms: | dense, insensitive, unaware, unobservant |
* = informal/non-formal usage
| Main Entry: | perspicacious |
| Part of Speech: | adjective |
| Definition: | observant, perceptive |
| Synonyms: | acute, alert, astute, aware, clear-sighted, clever, discerning, heady, judicious, keen, penetrating, percipient, sagacious, savvy*, sharp, sharp-witted, shrewd |
| Antonyms: | ignorant, unobservant, unperceptive |
* = informal/non-formal usage
| Main Entry: | reasonable |
| Part of Speech: | adjective |
| Definition: | intelligent, practical |
| Synonyms: | advisable, all there, arguable, believable, cerebral, clear-cut, cognitive, commonsensical, conscious, consequent, consistent, cool*, credible, in one's right mind, judicious, justifiable, levelheaded, logical, perceiving, percipient, plausible, ratiocinative, rational, reasoned, reasoning, reflective, sane, sensible, sober, sound, tenable, thought-out, thoughtful, together*, tolerant, unbiased, unprejudiced, well-advised, wise |
| Antonyms: | implausible, impractical, nonsensical, stupid, unreasonable |
* = informal/non-formal usage
| Main Entry: | perceivable |
| Part of Speech: | adjective |
| Definition: | observable |
| Synonyms: | appercipient, cognitive, cognizable, cognoscible, comprehensible, corporeal, discernible, intelligible, knowing, observant, palpable, patent, perceptible, percipient, perspicacious, recognizable, sensible, sensitive, tangible, translucent, trenchant |
| Antonyms: | imperceivable |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
