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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | doubtful |
| Synonyms: | ambiguous, borderline, capricious, changeable, dizzy, dubious, erratic, fickle, fitful, fluctuating, giddy, inconsistent, inconstant, insecure, irrational, lubricious, mercurial, mobile, movable, moving, mutable, not fixed, precarious, rickety, risky, rocky, sensitive, shaky, shifty, slippery, suspect, teetering, temperamental, ticklish, tricky, uncertain, unpredictable, unsettled, unsteady, untrustworthy, vacillating, variable, volatile, wavering, weak, weaving, wiggly, wobbly |
| Antonyms: | stable, steady, strong |
| Main Entry: | capricious |
| Part of Speech: | adjective |
| Definition: | given to sudden behavior change |
| Synonyms: | any way the wind blows, arbitrary, blowing hot and cold, careless, changeful, contrary, crotchety, effervescent, erratic, every which way, fanciful, fickle, fitful, flaky*, flighty, freakish, gaga, helter-skelter, humorsome, impulsive, inconstant, kinky*, lubricious, mercurial, moody, mutable, notional, odd, picky*, punchy, queer, quirky, temperamental, ticklish, unpredictable, unreasonable, unstable, up and down, vagarious, variable, volatile, wayward, whimsical, yo-yo |
| Antonyms: | constant, dependable, sensible, staid, steadfast, steady |
* = informal/non-formal usage
| Main Entry: | changeable |
| Part of Speech: | adjective |
| Definition: | erratic |
| Synonyms: | agitated, capricious, changeful, commutative, convertible, fickle, fitful, flighty, fluctuating, fluid, impulsive, inconstant, indecisive, irregular, irresolute, irresponsible, kaleidoscopic, mercurial, mobile, movable, mutable, permutable, protean, restless, reversible, revocable, shifting, skittish, spasmodic, transformable, transitional, uncertain, unpredictable, unreliable, unsettled, unstable, unsteady, vacillating, vagrant, variable, variant, varying, versatile, volatile, wavering, whimsical |
| Antonyms: | certain, changeless, constant, fixed, lasting, reliable, stable, steady, sure, unchangeable, undeviating |
| Main Entry: | dangerous |
| Part of Speech: | adjective |
| Definition: | hazardous, troubling |
| Synonyms: | alarming, bad, breakneck, chancy, critical, dangersome, deadly, delicate, dynamite, exposed, fatal, formidable, hairy*, heavy*, hot*, impending, impregnable, insecure, jeopardous, loaded, malignant, menacing, mortal, nasty, on collision course, parlous, perilous, portentous, precarious, pressing, queasy, risky, serious, serpentine, shaky, speculative, terrible, thorny, threatening, ticklish, touch-and-go, touchy, treacherous, ugly*, unhealthy, unsafe, unstable, urgent, viperous, vulnerable, wicked |
| Antonyms: | careful, guarded, safe, secure, unhazardous, untroubled |
* = informal/non-formal usage
| Main Entry: | desultory |
| Part of Speech: | adjective |
| Definition: | random |
| Synonyms: | aimless, chance, chaotic, deviating, erratic, haphazard, orderless, rambling, unmethodical, unstable, unsystematic, without purpose |
| 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: | doubtful |
| Part of Speech: | adjective |
| Definition: | questionable, unclear |
| Synonyms: | ambiguous, borderline, chancy, clouded, contingent, debatable, dicey, disreputable, doubtable, dubious, dubitable, equivocal, far-fetched, fat chance, fishy, hazardous, hazy, iffy, impugnable, inconclusive, indecisive, indefinite, indeterminate, indistinct, insecure, long shot, obscure, on thin ice, open, pending, precarious, problematic, shady, sneaky*, speculative, suspect, suspicious, touch-and-go, touchy, uncertain, unconfirmed, undecided, uneasy, unsettled, unstable, unsure, up for grabs |
| Notes: | a person is capable of doubting, whereas a thing is dubitable; dubious, unlike doubtful, carries the connotation of suspicion |
| Antonyms: | certain, clear, confirmed, decided, definite, exact, resolved, settled, unquestionable |
* = informal/non-formal usage
| Main Entry: | erratic |
| Part of Speech: | adjective |
| Definition: | unpredictable; wandering |
| Synonyms: | aberrant, abnormal, anomalous, arbitrary, bizarre, capricious, changeable, desultory, devious, dicey, directionless, dubious, eccentric, fitful, flaky*, fluctuant, idiosyncratic, iffy, incalculable, inconsistent, inconstant, irregular, meandering, mercurial, nomadic, oddball, peculiar, planetary, rambling, roving, shifting, spasmodic, strange, stray, uncertain, undirected, unnatural, unreliable, unstable, unusual, vagarious, variable, volatile, wayward, weird, whimsical |
| Antonyms: | certain, consistent, definite, dependable, predictable, regular, reliable, steady, sure, unchanging |
* = informal/non-formal usage
| Main Entry: | explosive |
| Part of Speech: | adjective |
| Definition: | volatile, dangerous |
| Synonyms: | at the boiling point, bursting, charged, consequential, convulsive, detonating, detonative, ebullient, eruptive, fiery, forceful, frenzied, fulminant, fulminating, hazardous, impetuous, meteoric, overwrought, perilous, raging, rampant, stormy, tense, touchy, ugly, uncontrollable, unstable, vehement, violent, wild |
| Antonyms: | calm, peaceful, safe |
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.
