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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | mentally strange |
| Synonyms: | ape, barmy, bats in the belfry, batty, berserk, bonkers*, cracked, crazed, cuckoo, daft, delirious, demented, deranged, dingy*, dippy, erratic, flaky, flipped, flipped out, freaked out, fruity, idiotic, insane, kooky, lunatic, mad, mad as a March hare, mad as a hatter, maniacal, mental*, moonstruck, nuts, nutty, nutty as fruitcake, of unsound mind, out of one's mind, out of one's tree, out to lunch, potty, psycho, round the bend, schizo, screw loose, screwball, screwy, silly, touched*, unbalanced, unglued, unhinged, unzipped, wacky |
| Antonyms: | balanced, realistic, reasonable, responsible, sane, sensible, smart |
* = informal/non-formal usage
| Main Entry: | mad |
| Part of Speech: | adjective |
| Definition: | crazy, insane |
| Synonyms: | aberrant, absurd, bananas, batty, crazed, cuckoo, daft, delirious, demented, deranged, distracted, fantastic, foolhardy, foolish, frantic, frenetic, frenzied, illogical, imprudent, invalid, irrational, kooky, loony, ludicrous, lunatic, mental, non compos mentis, nonsensical, nutty, of unsound mind, off one's rocker, out of one's mind, preposterous, psychotic, rabid, raving, senseless, unbalanced, unhinged, unreasonable, unsafe, unsound, unstable, wacky* |
| Antonyms: | balanced, ok, rational, reasonable, sane, sound |
* = informal/non-formal usage
| Main Entry: | fruity |
| Part of Speech: | adjective |
| Definition: | insane |
| Synonyms: | bananas, batty, bonkers*, buggy, crackers, crazed, crazy, crazy as a loon, cuckoo, daft, demented, disordered, dotty, eccentric, kooky, loco, loony, lunatic, mad, mad as a hatter, mentally ill, moonstruck, not all there, nuts, nutty as a fruitcake, nutty, of unsound mind, off, off one's rocker, out of one's mind, stark raving mad, touched*, unbalanced, unsound, wacky |
* = informal/non-formal usage
| Main Entry: | loco |
| Part of Speech: | adjective |
| Definition: | insane |
| Synonyms: | around the bend, batty, bizarre, brainsick, cracked, crazed, crazy as a loon, crazy*, cuckoo, daft, demented, derailed, deranged, disordered, distraught, dotty, fatuous, frenzied, idiotic, impractical, irrational, irresponsible, loony, lunatic, mad, mad as a hatter, maniac, maniacal, mental, mentally ill, moonstruck, not all there, nuts, nutty as a fruitcake, nutty, of unsound mind, off, off one's rocker, off one's rocker, out of one's mind, out of one's mind, paranoid, preposterous, psychopathic, psychotic, rabid, raging, raving, schizophrenic, screwy, senseless, sick in the head, stark raving mad, touched*, unbalanced, unhinged, unsettled, unsound, wild, wrong |
* = informal/non-formal usage
| Main Entry: | moonstruck |
| Part of Speech: | adjective |
| Definition: | insane |
| Synonyms: | around the bend, batty, bizarre, brainsick, cracked, crazed, crazy as a loon, crazy*, cuckoo, daft, demented, derailed, deranged, disordered, distraught, dotty, fatuous, frenzied, idiotic, impractical, irrational, irresponsible, loony, lunatic, mad, mad as a hatter, maniac, maniacal, mental, mentally ill, not all there, nuts, nutty as a fruitcake, nutty, of unsound mind, off, off one's rocker, off one's rocker, out of one's mind, out of one's mind, paranoid, preposterous, psychopathic, psychotic, rabid, raging, raving, schizophrenic, screwy, senseless, sick in the head, stark raving mad, touched*, unbalanced, unhinged, unsettled, unsound, wild, wrong |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
