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| Main Entry: | |
| 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: | scientific |
| Part of Speech: | adjective |
| Definition: | systematic; discovered through experimentation |
| Synonyms: | accurate, clear, controlled, deductive, exact, experimental, logical, mathematical, methodical, objective, precise, sound |
| Antonyms: | artistic |
| Main Entry: | sensible |
| Part of Speech: | adjective |
| Definition: | realistic, reasonable |
| Synonyms: | all there, astute, attentive, au courant, aware, canny, cognizant, commonsensical, conscious, consequent, conversant, cool*, discerning, discreet, discriminating, down-to-earth, far-sighted, having all one's marbles, in right mind, informed, intelligent, judicious, knowing, logical, matter-of-fact, practical, prudent, rational, sagacious, sage, sane, sentient, shrewd, sober, sound, together, well-reasoned, well-thought-out, wise, witting |
| Notes: | sensible means showing reason or sound judgment; sensitive means responsive to physical stimuli or having the capacity or ability of perceiving with a sense or senses |
| Antonyms: | indiscreet, senseless, unrealistic, unreasonable, unwise |
* = informal/non-formal usage
| Main Entry: | speculative |
| Part of Speech: | adjective |
| Definition: | theoretical |
| Synonyms: | abstract, analytical, assumed, conceptive, dangerous, dicey, experimental, formularized, hairy, hazardous, hypothetical, ideal, idealized, ideological, iffy, in theory, intellectual, logical, notional, philosophical, presumed, risky, uncertain, unproved, unproven, unsubstantiated |
| Main Entry: | systematic |
| Part of Speech: | adjective |
| Definition: | orderly |
| Synonyms: | analytical, arranged, businesslike, complete, efficient, logical, methodic, methodical, ordered, organized, out-and-out, precise, regular, standardized, systematized, thoroughgoing, well-ordered |
| Notes: | systemic means 'deep-seated, integral, built into the system'; systematic means 'periodic, occurring with regularity' |
| Antonyms: | chaotic, confused, disorderly, mixed up, unmethodical, unsystematic |
| Main Entry: | theoretical |
| Part of Speech: | adjective |
| Definition: | hypothetical |
| Synonyms: | abstract, academic, analytical, as a premise, assumed, codified, conjectural, contingent, formalistic, formularized, general, ideal, idealized, ideational, ideological, imaginative, impractical, in the abstract, in theory, instanced, intellectual, logical, metaphysical, notional, on paper, pedantic, philosophical, postulated, presumed, problematical, pure, quixotic, speculative, suppositional, tentative, transcendent, transcendental, unearthly, unproved, unsubstantiated, vague |
| Notes: | empirical describes results determined by experiment and observed behavior or facts; theoretical describes results that are based on guesswork or hypothesis - and pragmatic is contrasted with theoretical on the grounds that the former proceeds from what is demonstrably practical, the latter from conjecture |
| Antonyms: | certain, definite, factual, proven, real |
| Main Entry: | thoughtful |
| Part of Speech: | adjective |
| Definition: | contemplative, introspective |
| Synonyms: | absorbed, analytical, attentive, brainy, calculating, cerebral, cogitative, deep, deliberative, discerning, earnest, engrossed, farsighted, grave, intellectual, intent, keen, levelheaded, logical, lost in thought, meditative, melancholy, museful, musing, pensive, philosophic, pondering, preoccupied, rapt, rational, reasonable, reasoning, reflecting, reflective, retrospective, ruminative, serious, sober, studious, subjective, thinking, wise, wistful |
| Antonyms: | idiotic, negligent, obtuse, remiss, stupid, thoughtless |
| Main Entry: | valid |
| Part of Speech: | adjective |
| Definition: | right, genuine |
| Synonyms: | accurate, attested, authentic, authoritative, binding, bona fide, cogent, compelling, conclusive, confirmed, convincing, credible, determinative, efficacious, efficient, good, in force, irrefutable, just, kosher*, lawful, legal, legit, legitimate, logical, official, original, persuasive, potent, powerful, proven, pure, solid, sound, stringent, strong, substantial, telling, tested, true, trustworthy, ultimate, unadulterated, unanswerable, uncorrupted, weighty, well-founded, well-grounded |
| Antonyms: | invalid, unacceptable, unreal, unsound, wrong |
* = informal/non-formal usage
| Main Entry: | understandable |
| Part of Speech: | adjective |
| Definition: | able to be understood |
| Synonyms: | acceptable, clear, coherent, comprehensible, intelligible, justifiable, logical, lucid, pellucid, plain, reasonable, recognizable, simple |
| Antonyms: | incomprehensible, unfathomable |
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.
