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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | silly, impulsive |
| Synonyms: | bemused, brainless, bubbleheaded, capricious, careless, changeable, changeful, ditzy, dizzy, empty-headed, erratic, fickle, flighty, flustered, frivolous, gaga, heedless, inconstant, irresolute, irresponsible, lightheaded, punchy, reckless, reeling, scatterbrained, skittish, slaphappy, swimming*, thoughtless, unbalanced, unsettled, unstable, unsteady, vacillating, volatile, whimsical, whirling, wild, woozy |
| Antonyms: | calm, careful, level-headed, sensible, serious |
* = 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: | ditsy |
| Part of Speech: | adjective |
| Definition: | silly |
| Synonyms: | airbrained, airheaded, daffy, dippy, dipsy, dizzy*, dopey, eccentric, empty, giddy, goofy*, inane, kooky, rattlebrained, scatterbrained |
* = informal/non-formal usage
| Main Entry: | dizzy |
| Part of Speech: | adjective |
| Definition: | light-headed, confused |
| Synonyms: | addled, befuddled, bemused, bewildered, blind, blinded, dazed, dazzled, distracted, disturbed, dumb, dumbfounded, faint, gaga, giddy, groggy, hazy, light, muddled, off balance, out of control, punch-drunk, punchy, puzzled, reeling, shaky, slap-happy, staggered, staggering, swimming*, tipsy, unsteady, upset, vertiginous, weak in the knees, weak-kneed, whirling, wobbly, woozy |
| Antonyms: | clear, clear-headed, unconfused |
* = informal/non-formal usage
| Main Entry: | dizzy |
| Part of Speech: | adjective |
| Definition: | flighty, scatterbrained |
| Synonyms: | capricious, changeable, crazy, empty-headed, fatuous, feather-brained, fickle, foolish, frivolous, giddy, harebrained, heady, inane, light-headed, silly, skittish, unstable |
| Antonyms: | clear-thinking, sensible, smart |
| Main Entry: | empty-headed |
| Part of Speech: | adjective |
| Definition: | flighty, scatterbrained |
| Synonyms: | brainless, dizzy, featherbrained, frivolous, giddy, harebrained, ignorant, illiterate, inane, know-nothing, silly, skittish, stupid, uneducated, unschooled, untaught, vacant, vacuous |
| Antonyms: | cognizant, intelligent, sensible, slick, smart |
| Main Entry: | fast |
| Part of Speech: | adjective |
| Definition: | immoral, promiscuous |
| Synonyms: | bawdy, careless, debauched, depraved, devil-may-care, dissipated, dissolute, easy, extravagant, flirtatious, frivolous, gadabout, giddy, incontinent, indecent, intemperate, lascivious, lecherous, lewd, libertine, libidinous, licentious, light, loose, lustful, profligate, rakish, reckless, salacious, self-gratifying, self-indulgent, sportive, sporty, unchaste, wanton, wild |
| Antonyms: | good, moral, upright |
| Main Entry: | flighty |
| Part of Speech: | adjective |
| Definition: | fickle, irresponsible |
| Synonyms: | airheaded, birdbrained, bubbleheaded, capricious, changeable, dingbat, dingdong, dizzy*, effervescent, empty-headed, featherbrained, frivolous, gaga, giddy, harebrained, impetuous, impulsive, inconstant, lightheaded, lively, mercurial, scatterbrained, silly, thoughtless, twit, unbalanced, unstable, unsteady, volatile, whimsical, wild |
| Antonyms: | responsible |
* = informal/non-formal usage
| Main Entry: | frivolous |
| Part of Speech: | adjective |
| Definition: | trivial, silly |
| Synonyms: | barmy, childish, dizzy*, empty-headed, facetious, featherbrained, flighty, flip, flippant, foolish, gay, giddy*, harebrained, idiotic, idle, ill-considered, impractical, juvenile, light, light-minded, minor, niggling, nonserious, not serious, paltry, peripheral, petty, playful, pointless, puerile, scatterbrained, senseless, shallow, sportive, superficial, tongue-in-cheek, unimportant, unprofound, volatile, whimsical |
| Antonyms: | grave, mature, sensible, serious, solemn, thoughtful, wise |
* = 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.
