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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | uncertain, worried |
| Synonyms: | Delphic, afraid, anxious, apprehensive, choked, diffident, hanging by thread, hesitant, jumpy, on thin ice, questioning, shaky, touch and go, touchy*, troubled, unassured, unconfident, unpoised, unsure, up in the air, uptight*, vague |
| Antonyms: | certain, confident, secure, sure |
* = informal/non-formal usage
| 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: | diffident |
| Part of Speech: | adjective |
| Definition: | hesitant; unconfident |
| Synonyms: | backward, bashful, blenching, chary, constrained, coy, demure, distrustful, doubtful, dubious, flinching, humble, insecure, meek, modest, mousy, rabbity, reluctant, reserved, retiring, self-conscious, self-effacing, sheepish, shrinking, shy, suspicious, timid, timorous, unassertive, unassuming, unassured, unobtrusive, unpoised, unsure, withdrawn |
| Antonyms: | bold, confident |
| 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: | hazardous |
| Part of Speech: | adjective |
| Definition: | dangerous, unpredictable |
| Synonyms: | chancy, dicey, difficult, hairy*, haphazard, hot*, insecure, parlous, perilous, precarious, risky, touchy, uncertain, unhealthy, unsafe, unsound, venturesome, wicked |
| Antonyms: | certain, guarded, predictable, protected, safe, secure |
* = informal/non-formal usage
| Main Entry: | ill at ease |
| Part of Speech: | adjective |
| Definition: | not feeling at ease |
| Synonyms: | anxious, apprehensive, awkward, discomfited, disquieted, disturbed, doubtful, edgy, faltering, fidgety, hesitant, insecure, nervous, nervous, on edge, on edge, on pins and needles, on pins and needles, on tenterhooks, out of place, restless, self-conscious, shy, suspicious, tense, uncomfortable, uncomfortable, uneasy, unrelaxed, unsettled, unsure |
| Antonyms: | at ease, comfortable, content |
| Main Entry: | infirm |
| Part of Speech: | adjective |
| Definition: | sick, weak |
| Synonyms: | ailing, anemic, anile, debilitated, decrepit, delicate, enfeebled, failing, faint, faltering, feeble, flimsy, fragile, frail, halting, ill, insecure, irresolute, laid low, lame, sensile, shaky, unsound, unstable, unsubstantial, vacillating, wavering, wobbly |
| Antonyms: | firm, healthy, hearty, robust, sound, strong |
| Main Entry: | loose |
| Part of Speech: | adjective |
| Definition: | not tight; unconstrained |
| Synonyms: | apart, asunder, at large, baggy, clear, detached, disconnected, easy, escaped, flabby, flaccid, floating, free, hanging, insecure, lax, liberated, limp, loosened, movable, not fitting, relaxed, released, separate, slack, slackened, sloppy, unattached, unbolted, unbound, unbuttoned, uncaged, unclasped, unconfined, unconnected, undone, unfastened, unfettered, unhinged, unhooked, unlatched, unlocked, unpinned, unrestrained, unrestricted, unsecured, unshackled, untied, wobbly |
| Notes: | loose means not restrained, fastened, confined or attached, while lose means fail to keep or to maintain or fail to win |
| Antonyms: | constrained, restricted, taut, tight |
| Main Entry: | perilous |
| Part of Speech: | adjective |
| Definition: | dangerous |
| Synonyms: | Russian roulette, chancy, delicate, dicey, dynamite, exposed, hairy*, hazardous, insecure, loaded, on thin ice, playing with fire, precarious, risky, rugged, shaky, threatening, ticklish, touch and go, touchy, treacherous, uncertain, unhealthy, unsafe, unsound, unstable, unsteady, unsure, vulnerable, wicked* |
| Antonyms: | ok, safe, secure |
* = 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.
