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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | oblivious, stupid; automatic |
| Synonyms: | asinine, brutish, careless, daydreaming, foolish, forgetful, gratuitous, heedless, idiotic, imbecilic, inattentive, mooning, moony, moronic, neglectful, negligent, nitwitted, obtuse, out, out of it, rash, senseless, silly, simple, spaced-out, thoughtless, unaware, unintelligent, unmindful, unthinking, witless |
| Antonyms: | intelligent, mindful, thinking, thoughtful |
| Main Entry: | brute |
| Part of Speech: | adjective |
| Definition: | very strong; animal-like |
| Synonyms: | animal, beastly, bestial, bodily, carnal, feral, ferine, fleshly, instinctive, mindless, physical, senseless, swinish, unthinking |
| Antonyms: | gentle, mild, weak |
| Main Entry: | careless |
| Part of Speech: | adjective |
| Definition: | without sufficient attention |
| Synonyms: | absent-minded, abstracted, casual, cursory, disregardful, forgetful, hasty, heedless, improvident, imprudent, inaccurate, inadvertent, incautious, inconsiderate, indifferent, indiscreet, indolent, injudicious, irresponsible, lackadaisical, lax, loose, mindless, napping, negligent, nonchalant, oblivious, offhand, perfunctory, pococurante, reckless, regardless, remiss, slipshod, sloppy, thoughtless, uncircumspect, unconcerned, unguarded, unheeding, unmindful, unobservant, unreflective, unthinking, wasteful |
| Notes: | carefree means free of trouble and worry and care while careless means marked by lack of attention or consideration or forethought or thoroughness; not careful |
| Antonyms: | accurate, attentive, careful, cautious, concerned, mindful, painstaking, prudent, ready, thoughtful |
| Main Entry: | fatuous |
| Part of Speech: | adjective |
| Definition: | stupid |
| Synonyms: | absurd, asinine, birdbrained, boneheaded, brainless, dense, dull, foolish, idiotic, imbecile, inane, insensate, jerky, lamebrained, ludicrous, lunatic, mad, mindless, moronic, puerile, sappy, silly, simple, vacuous, witless |
| Antonyms: | aware, bright, intelligent, keen, sensible, smart |
| Main Entry: | harebrained |
| Part of Speech: | adjective |
| Definition: | stupid, unthinking |
| Synonyms: | absurd, asinine, barmy, bizarre, careless, changeable, crazy, dizzy*, empty-headed, featherbrained, flighty, foolish, frivolous, giddy, half-baked, heedless, inane, irresponsible, loony, mindless, preposterous, rash, rattlebrained, reckless, scatterbrained, unstable, unsteady, wacky*, wild |
| Antonyms: | brainy, intelligent, reasonable, sensible, smart, thoughtful |
* = informal/non-formal usage
| Main Entry: | ignorant |
| Part of Speech: | adjective |
| Definition: | unaware, unknowing |
| Synonyms: | apprenticed, benighted, birdbrained, blind to, cretinous, dense, green*, illiterate, imbecilic, in the dark, inexperienced, innocent, insensible, mindless, misinformed, moronic, naive, nescient, oblivious, obtuse, shallow, thick, unconscious, unconversant, uncultivated, uncultured, uneducated, unenlightened, uninformed, uninitiated, unintellectual, unknowledgeable, unlearned, unlettered, unmindful, unread, unschooled, unsuspecting, untaught, untrained, unwitting, witless |
| Notes: | stupid refers to lack of ability while ignorant refers to lack of knowledge |
| Antonyms: | aware, competent, educated, intelligent, knowledgeable, literate, talented, wise |
* = informal/non-formal usage
| Main Entry: | inane |
| Part of Speech: | adjective |
| Definition: | stupid |
| Synonyms: | absurd, asinine, daft, empty, fatuous, flat, foolish, frivolous, futile, harebrained, idiotic, illogical, imbecilic, innocuous, insipid, jejune, laughable, meaningless, mindless, pointless, puerile, ridiculous, sappy*, senseless, silly, trifling, unintelligent, vacant, vacuous, vain, vapid, weak, wishy-washy, worthless |
| Notes: | inane means silly, lacking significance or insubstantial; insane means mentally deranged, mad or very foolish |
| Antonyms: | bright, intelligent, smart |
* = informal/non-formal usage
| Main Entry: | irrational |
| Part of Speech: | adjective |
| Definition: | illogical, senseless |
| Synonyms: | aberrant, absurd, brainless, cockamamie, crazy, delirious, demented, disconnected, disjointed, distraught, fallacious, flaky*, foolish, freaky, incoherent, injudicious, insane, invalid, kooky, loony, mad, mindless, nonsensical, nutty, off-the-wall, preposterous, raving, reasonless, ridiculous, silly, sophistic, specious, stupid, unreasonable, unreasoning, unsound, unstable, unthinking, unwise, wacky*, wild, wrong |
| Antonyms: | logical, rational, reasonable, reflective, sensible, sound, stable |
* = informal/non-formal usage
| Main Entry: | mental |
| Part of Speech: | adjective |
| Definition: | insane |
| Synonyms: | deranged, disturbed, fruity, loco, lunatic, mad, maniac, mentally ill, mindless, non compos mentis, nuts, nutsy, psychiatric, psychotic, unbalanced, unstable |
| Antonyms: | balanced, sane |
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.
