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lunatic - 20 thesaurus results
| Main Entry: | lunatic |
| Part of Speech: | adjective |
| Definition: | crazy, mad |
| Synonyms: | absurd, baked*, balmy*, bonkers*, cracked, crazed, daft, demented, deranged, flaky*, foolish, fried*, idiotic, insane, irrational, maniac, maniacal, nonsensical, nutty*, preposterous, psychotic, screwy*, stupid, unsound, zany, bananas, dippy, flipped out, freaked out, kooky, loco, psyched out, schizoid, whacko |
| Antonyms: | healthy, sane, sensible |
* = informal/non-formal usage
| Main Entry: | lunatic |
| Part of Speech: | noun |
| Definition: | person who is crazy, mad |
| Synonyms: | crackpot*, crank, cuckoo*, flake*, kook*, maniac, neurotic, nut*, paranoid, psycho, psychopath, psychotic, demoniac, fruitcake, lamebrain*, loon, scatterbrain, schizophrenic, sociopathic |
| Antonyms: | sane |
* = informal/non-formal usage
| Main Entry: | crazed |
| Part of Speech: | adjective |
| Definition: | insane |
| Synonyms: | berserk, certifiable, crazy, demented, deranged, frenzied, hysterical, lunatic, mad, maniac, manic, mental*, out of one's mind, psychopathic, raving |
| Antonyms: | sane |
* = informal/non-formal usage
| Main Entry: | daft |
| Part of Speech: | adjective |
| Definition: | stupid; crazy |
| Synonyms: | absurd, asinine, bedlamite, bonkers, cracked*, crackers, daffy*, demented, deranged, dopey*, flaky*, foolish, fried*, giddy, half-baked*, idiotic, in the ozone, inane, insane, lunatic, mad, mental*, nuts, nutty*, off the wall, out of one's gourd, ridiculous, screwy*, silly, simple, touched, unbalanced, unhinged*, unsound, wacky, whacko, witless |
| Antonyms: | brainy, bright, intelligent, smart, understanding |
* = informal/non-formal usage
| Main Entry: | demented |
| Part of Speech: | adjective |
| Definition: | crazy, insane |
| Synonyms: | bananas, bemused, crackbrained, daft, delirious, deranged, distracted, distraught, flipped out, foolish, frenzied, fruity, hysterical, idiotic, in the ozone, lunatic, mad, maniac, maniacal, manic, non compos mentis, nutty as a fruitcake, out of one's gourd, out of one's tree, psycho, psychopathic, psychotic, schitzy, schizoid, unbalanced, unglued, unhinged*, unsound, whacko |
| Antonyms: | balanced, rational, reasonable, sane, sensible |
* = informal/non-formal usage
| Main Entry: | deranged |
| Part of Speech: | adjective |
| Definition: | crazy, insane |
| Synonyms: | ape*, baked*, berserk, cracked*, crazed, delirious, demented, disconcerted, disordered, displaced, distracted, dotty*, frantic, frenzied, fried*, irrational, lunatic, mad, maniac, maniacal, nuts*, perplexed, unbalanced, unhinged*, unsettled, unsound, bananas, disarranged, flipped, flipped out, loco, maddened, schizzo, unglued, unscrewed, unzipped, whacko |
| Antonyms: | balanced, calm, sane, ok |
* = informal/non-formal usage
| Main Entry: | fatuous |
| Part of Speech: | adjective |
| Definition: | stupid |
| Synonyms: | absurd, asinine, brainless*, dense, dull, foolish, idiotic, imbecile, inane, insensate, jerky*, ludicrous, lunatic, mad, mindless, moronic, puerile, sappy, silly, simple, vacuous, witless, birdbrained, boneheaded, lamebrained |
| Antonyms: | aware, bright, intelligent, keen, sensible, smart |
* = informal/non-formal usage
| Main Entry: | foolish |
| Part of Speech: | adjective |
| Definition: | nonsensical, idiotic |
| Synonyms: | absurd, asinine, brainless, crazy, daffy*, daft, dotty*, fantastic, fatuous, feebleminded*, half-baked*, half-witted*, harebrained*, ill-advised, imprudent, incautious, indiscreet, injudicious, insane, irrational, jerky*, loony*, ludicrous, lunatic, mad, moronic, nutty*, preposterous, ridiculous, senseless, short-sighted, silly, simple, stupid, unintelligent, unreasonable, unwise, wacky*, weak, witless, zany*, cockamamy, dippy, doltish, ill-considered, imbecilic, kooky, nerdy |
| Antonyms: | careful, cautious, circumspect, prudent, sensible, serious, thoughtful, wise, unfoolish |
* = informal/non-formal usage
| Main Entry: | idiotic |
| Part of Speech: | adjective |
| Definition: | very stupid |
| Synonyms: | asinine, batty*, crazy, daffy*, daft, dull, dumb, fatuous, foolhardy, foolish, harebrained*, imbecile, inane, insane, lunatic, moronic, senseless, silly, unintelligent, birdbrained, imbecilic, squirrelly, thick-witted |
| Antonyms: | brainy, intelligent, smart |
* = informal/non-formal usage
| Main Entry: | insane |
| Part of Speech: | adjective |
| Definition: | mentally ill; foolish |
| Synonyms: | batty*, bizarre, cracked*, crazed, crazy, cuckoo*, daft, demented, derailed, deranged, fatuous, frenzied, idiotic, impractical, irrational, irresponsible, loony*, lunatic, mad, maniacal, mental, moonstruck, nuts*, nutty*, of unsound mind, off one's rocker, out of one's mind, paranoid, preposterous, psychopathic, psychotic, rabid, raging, raving, schizophrenic, screwy, senseless, touched, unhinged, unsettled, wild |
| Notes: | inane means silly, lacking significance or insubstantial; insane means mentally deranged, mad or very foolish |
| Antonyms: | balanced, healthy, rational, reasonable, sane, sound, well |
* = informal/non-formal usage
| Main Entry: | kook |
| Part of Speech: | noun |
| Definition: | eccentric person |
| Synonyms: | crackpot, crank, crazy*, flake*, lunatic, nut, screwball*, weirdo, dingbat, fruitcake, lamebrain, wacko |
* = informal/non-formal usage
| Main Entry: | loony |
| Part of Speech: | adjective |
| Definition: | crazy |
| Synonyms: | ape, barmy, batty, berserk, bonkers*, cracked, crazed, cuckoo, daffy*, daft, delirious, demented, deranged, flaky, flipped out, insane, kooky, lunatic, mad, maniacal, mental*, nuts, nutty, out of one's mind, out to lunch, psycho, screwball*, screwy*, silly, touched*, unbalanced, wacky |
* = informal/non-formal usage
| Main Entry: | mad person |
| Part of Speech: | noun |
| Definition: | person who is considered mentally ill |
| Synonyms: | crazy person, demented, deranged, idiot, imbecile, lunatic, maniac, patient, psycho, psychopath, psychotic, sociopath, bedlamite, loon, mental case, raver, schizophrenic |
| Main Entry: | maniac |
| Part of Speech: | noun |
| Definition: | person who is crazy, overenthusiastic |
| Synonyms: | bigot, crackpot*, enthusiast, fan, fanatic, fiend, flake*, freak, kook*, loony*, lunatic, madperson, nut*, psycho, psychopath, screwball*, zealot, Section 8, bedlamite, fruitcake, loon, nutcase, schizoid |
* = informal/non-formal usage
| Main Entry: | manic/maniacal |
| Part of Speech: | adjective |
| Definition: | overexcited, crazy |
| Synonyms: | berserk, crazed, demented, deranged, excited, frenzied, high*, insane, lunatic, mad, nutty*, psychotic, rabid, raving, unbalanced, up*, wild, flipped, flipped out, freaked out, freaky, turned-out |
| Antonyms: | balanced, calm, sane |
* = informal/non-formal usage
| Main Entry: | nuts/nutty |
| Part of Speech: | adjective |
| Definition: | mentally deranged |
| Synonyms: | absurd, batty*, bedlamite, cracked*, crazy, daffy, daft, demented, eccentric, enthusiastic, foolish, gung ho*, harebrained*, insane, irrational, keen, kooky, loony, lunatic, mad, out of one's mind, ridiculous, touched, unusual, wacky*, warm, zealous |
| Antonyms: | balanced, calm, sane, well |
* = informal/non-formal usage
| Main Entry: | psychopath |
| Part of Speech: | noun |
| Definition: | person who is mentally deranged, often prone to hurt others |
| Synonyms: | insane person, lunatic, mad person, maniac, psycho, psychotic, sociopath, antisocial personality, mental case, nutcase, schizoid, unstable personality |
| Main Entry: | psychotic |
| Part of Speech: | adjective |
| Definition: | mentally deranged |
| Synonyms: | certifiable, crazy, demented, distracted, flipped-out, insane, lunatic, mad, manic-depressive, mental, non compos mentis, nuts*, off one's rocker, over the edge, psycho, psychopathic, schizophrenic, sick, unbalanced, unhinged* |
* = informal/non-formal usage
| Main Entry: | sociopath |
| Part of Speech: | noun |
| Definition: | psychopath |
| Synonyms: | crazy person, insane person, lunatic, mad person, maniac, psycho, psychotic, antisocial personality, deranged person, schizoid |
| Main Entry: | unhinged |
| Part of Speech: | adjective |
| Definition: | demented |
| Synonyms: | bananas, batty*, berserk, bonkers*, confused, crazed, crazy*, deranged, disturbed, insane, loopy, lunatic, mad, maniac, manic, mental*, out of one's mind, out to lunch, touched*, unbalanced |
| Antonyms: | sane, stable |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
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