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spontaneous - 20 thesaurus results
| Main Entry: | spontaneous |
| Part of Speech: | adjective |
| Definition: | impulsive, willing |
| Synonyms: | ad-lib*, automatic, casual, down, extemporaneous, extempore, free, impetuous, impromptu, improvised, inevitable, instinctive, involuntary, irresistible, natural, offhand, simple, unavoidable, unconscious, uncontrolled, unintentional, unplanned, unsophisticated, unstudied, up front, voluntary, break loose, free spirited, from the hip, off top of head, off-the-cuff, unartful, unbidden, uncompelled, unconstrained, uncontrived, unforced, unpremediated, unprompted |
| Antonyms: | deliberate, intended, planned, premeditated |
* = informal/non-formal usage
| Main Entry: | ad-lib |
| Part of Speech: | adjective |
| Definition: | at one's pleasure |
| Synonyms: | ad libitum, extemporaneous, extempore, extemporize, impromptu, improvise, improvised, made-up, spontaneous, unprepared, unrehearsed, according to pleasure, as one thinks best, as one wishes, at will, extemporized, off-the-cuff, off-the-cuff, without restraint |
| Antonyms: | deliberate, planned, prepared, written, rehearsed |
| Main Entry: | chatty |
| Part of Speech: | adjective |
| Definition: | talkative |
| Synonyms: | colloquial, communicative, familiar, friendly, gabby, garrulous, informal, intimate, loquacious, spontaneous, conversational, gossipy, loose-lipped, multieloquent, talky |
| Antonyms: | quiet, silent, untalkative |
| Main Entry: | childlike |
| Part of Speech: | adjective |
| Definition: | innocent, naive |
| Synonyms: | artless, childish, credulous, guileless, immature, ingenuous, natural, simple, spontaneous, trusting, unaffected, unfeigned, trustful |
| Notes: | childlike refers to a person's temperament, whereas childish refers to a person's behavior |
| Antonyms: | complicated, untrusting |
| Main Entry: | emotional |
| Part of Speech: | adjective |
| Definition: | demonstrative about feelings |
| Synonyms: | affecting, ardent, disturbed, ecstatic, enthusiastic, excitable, exciting, fanatical, feeling, fervent, fervid, fickle, fiery, heartwarming, heated, histrionic, hysterical, impassioned, impetuous, impulsive, irrational, moving, nervous, overwrought, passionate, pathetic, poignant, responsive, sensitive, sentient, sentimental, spontaneous, stirring, susceptible, temperamental, tender, thrilling, touching, warm, zealous, emotive, falling apart, hot-blooded, roused, stirred, tear-jerking |
| Antonyms: | physical |
| Main Entry: | extemporaneous/extemporary |
| Part of Speech: | adjective |
| Definition: | unrehearsed, improvised |
| Synonyms: | ad hoc, automatic, casual, expedient, extempore, free, immediate, impromptu, informal, made-up, makeshift, off the cuff*, offhand, snap, spontaneous, unplanned, unpremeditated, unprepared, unstudied, ad lib, at first glance, by ear, improv, improvisatory, improviso, jamming, off the top of head, on impulse, on-the-spot, spur-of-the-moment, taking for ride, thought out loud, tossed off, tossed out, winging it |
| Antonyms: | planned, prepared, read, written, rehearsed |
* = informal/non-formal usage
| Main Entry: | gut |
| Part of Speech: | adjective |
| Definition: | intuitive |
| Synonyms: | basic, deep-seated, emotional, heartfelt, innate, inner, instinctive, interior, internal, intimate, involuntary, natural, spontaneous, unthinking, visceral, viscerous |
| Antonyms: | material, physical |
| Main Entry: | haphazard |
| Part of Speech: | adjective |
| Definition: | without plan or organization |
| Synonyms: | accidental, aimless, any which way, arbitrary, careless, casual, chance, desultory, devil-may-care*, disorderly, disorganized, erratic, fluke, helter-skelter*, hit-or-miss*, incidental, indiscriminate, irregular, loose, offhand, purposeless, random, reckless, slapdash, slipshod, spontaneous, sudden, unconcerned, unconscious, uncoordinated, unexpected, unorganized, unpremeditated, unthinking, willy-nilly*, all over the map, any old way, designless, unconsidered, unmethodical, unsystematic |
| Antonyms: | careful, intentional, methodical, organized, planned, straight, systematic, designed, thought-out |
* = informal/non-formal usage
| Main Entry: | impetuous |
| Part of Speech: | adjective |
| Definition: | acting without thinking |
| Synonyms: | abrupt, ardent, eager, fervid, fierce, furious, hasty, headlong, hurried, impassioned, impulsive, passionate, precipitate, precipitous, rash, restive, rushing, spontaneous, sudden, swift, unbridled, unexpected, unplanned, unpremeditated, unrestrained, unthinking, vehement, violent, going off deep end, precipitant, spur-of-the-moment, subitaneous, unreflecting |
| Antonyms: | calm, cautious, circumspect, considerate, reflective, sensible, thoughtful, wise |
| Main Entry: | impromptu |
| Part of Speech: | adjective, adverb |
| Definition: | unrehearsed, improvised |
| Synonyms: | ad-lib*, extemporaneous, extempore, fake, off the cuff*, offhand, spontaneous, unpremeditated, unprepared, unstudied, winged*, dashed off, extemporized, faked, improv, improviso, played by ear, shot from the hip, spur-of-the-moment, thrown off, tossed off, unscripted, vamped, whipped up |
| Antonyms: | deliberate, planned, premeditated, designed, rehearsed |
* = informal/non-formal usage
| Main Entry: | improvised |
| Part of Speech: | adjective |
| Definition: | made-up |
| Synonyms: | ad-lib, extemporaneous, extempore, fly-by-night*, hit-or-miss*, impromptu, makeshift, offhand, spontaneous, unprepared, unrehearsed, unstudied, Band-Aid, autoschediastic, extemporized, improviso, spur-of-the-moment |
| Antonyms: | planned, designed, premediated, rehearsed |
* = informal/non-formal usage
| Main Entry: | impulsive |
| Part of Speech: | adjective |
| Definition: | tending to act without thought |
| Synonyms: | abrupt, ad-lib*, automatic, careless, devil-may-care*, emotional, extemporaneous, flaky*, hasty, headlong, impetuous, instinctive, intuitive, involuntary, mad, offhand, passionate, precipitate, quick, rash, spontaneous, sudden, swift, unexpected, unpredictable, unpremeditated, up-and-down*, violent, gone off deep end, hot-and-cold, jumping the gun, unconsidered, unmeditated, unprompted, winging it |
| Antonyms: | cautious, considering, heedful, thoughtful, wise, premeditative |
* = informal/non-formal usage
| Main Entry: | informal |
| Part of Speech: | adjective |
| Definition: | casual, simple |
| Synonyms: | breezy, colloquial, congenial, cool*, democratic, easy, easygoing, everyday, extempore, familiar, folksy, frank, free, homey, inconspicuous, intimate, loose, mellow, mixed, motley, natural, open, ordinary, spontaneous, sporty, straightforward, unceremonious, unconventional, unofficial, unrestrained, urbane, down home, free-and-easy, improv, laid back, low-pressure, off-the-cuff, relaxed, throwaway, unconstrained, unfussy, without ceremony |
| Antonyms: | ceremonious, formal, official, rigid, stiff, buttoned-up, dressed-up |
* = informal/non-formal usage
| Main Entry: | instantaneous |
| Part of Speech: | adjective |
| Definition: | immediate |
| Synonyms: | direct, fast, in a flash, instant, momentary, quick, rapid, spontaneous, transitory, hair-trigger |
| Antonyms: | delayed, eventual, late, later |
| Main Entry: | instinctive |
| Part of Speech: | adjective |
| Definition: | reflex, automatic |
| Synonyms: | accustomed, by seat of one's pants, congenital, habitual, impulsive, inborn, ingrained, inherent, innate, instinctual, intrinsic, intuitional, intuitive, involuntary, knee-jerk*, mechanical, native, natural, normal, regular, rooted, second-nature, spontaneous, typical, unlearned, unmeditated, unpremeditated, unprompted, unthinking, visceral |
| Antonyms: | conscious, deliberate, meditated, reasonable, sensible |
* = informal/non-formal usage
| Main Entry: | intuitive |
| Part of Speech: | adjective |
| Definition: | instinctive |
| Synonyms: | automatic, direct, emotional, habitual, immediate, inherent, innate, involuntary, natural, perceptive, spontaneous, understood, untaught, visceral, instinctual, unreflecting |
| Antonyms: | calculated, taught, meditated, reasoned |
| Main Entry: | involuntary |
| Part of Speech: | adjective |
| Definition: | automatic; not done willingly |
| Synonyms: | automatic, blind, compulsory, conditioned, forced, habitual, impulsive, instinctive, knee-jerk*, obligatory, reflex, reluctant, spontaneous, unconscious, uncontrolled, unintentional, unpremeditated, unthinking, unwilling, unwitting, begrudging, grudging, instinctual, reflexive, uncalculated, unintended, unmeditated, unprompted, will-less |
| Antonyms: | conscious, intentional, voluntary, unforced |
* = informal/non-formal usage
| Main Entry: | naive |
| Part of Speech: | adjective |
| Definition: | childlike, trusting |
| Synonyms: | aboveboard, artless, callow, candid, countrified, credulous, forthright, frank, fresh, green*, guileless, gullible, harmless, ignorant, impulsive, ingenuous, innocent, innocuous, instinctive, jejune, natural, open, original, patsy*, plain, simple, sincere, spontaneous, square, sucker, unaffected, unpretentious, unschooled, unsophisticated, unsuspecting, untaught, unworldly, virgin, confiding, lamb, like a babe in the woods, simple-minded, unjaded, unsuspicious, wide-eyed |
| Antonyms: | experienced, leery, skeptical, wise |
* = informal/non-formal usage
| Main Entry: | off the cuff |
| Part of Speech: | adjective |
| Definition: | impromptu |
| Synonyms: | ad-lib, extemporaneous, improvised, spontaneous, unpremeditated, unprepared, unrehearsed, winged*, improv, improviso, off-hand, played by ear, shot from the hip, spur-of-the-moment, unscripted, whipped up |
* = informal/non-formal usage
| Main Entry: | unasked |
| Part of Speech: | adjective |
| Definition: | voluntary |
| Synonyms: | arrogant, gratuitous, impudent, not asked, of one's own accord, overbearing, presumptuous, spontaneous, supererogatory, unbidden, uncalled-for, undemanded, undesired, uninvited, unprompted, unrequested, unsought, unwanted, unwelcome, voluntarily, willing, without prompting |
| Antonyms: | asked, invited, involuntary, solicited |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009, Dictionary.com, LLC. All rights reserved.
