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spontaneousadjective done instantly and without conscious thought or decisionrecoiling when a wasp is near is simply a spontaneous reaction automatic, instinctive, instinctual, involuntary, knee-jerk, mechanic, mechanical, robotic conditioned, natural, Pavlovian, reactive, reflex, simple, subliminal, unconscious, unforced, visceralblind, inadvertent, unintended, unintentional, unwilling, unwittingabrupt, quick, ready, suddenad-lib, extemporaneous, extempore, impromptu, improvised, offhand, offhanded, off-the-cuff, snap, spur-of-the-moment, unconsidered, unplanned, unpremeditated, unprepared, unprompted, unreasoned, unrehearsed, unstudiedcasual, chance, chancy, haphazard, hasty, hit-or-miss, impetuous, impulsive, mindless, random, rash nonmechanical calculated, conscious, cultivated, deliberate, designed, intended, intentional, predetermined, prepared, projected, refined, rehearsed, volitional, voluntary, willed, willful(or wilful)advised, aforethought, careful, considered, foresighted, forethoughtful, measured, meticulous, reasoned, studied, thoughtful spontaneous, impulsive, instinctive, automatic, mechanical mean acting or activated without deliberation.spontaneous implies lack of prompting and connotes naturalness.a spontaneous burst of applause impulsive implies acting under stress of emotion or spirit of the moment.impulsive acts of violence instinctive stresses action involving neither judgment nor will.blinking is an instinctive reaction automatic implies action engaging neither the mind nor the emotions and connotes a predictable response.his denial was automatic mechanical stresses the lifeless, often perfunctory character of the response.a mechanical teaching method in 1653 |