spontaneous

Main Entry:
unprepared
Part of Speech: adjective
Definition: not ready
Synonyms: ad-lib, caught off guard, ill-considered, impromptu, improvised, napping, not prepared, off the cuff, off the top of one's head, offhand, played by ear, spontaneous, surprised, taken off guard, unaware, unexpected, unplanned, unready, unrehearsed, unschooled, unskilled, untrained, vulnerable, winged*
Main Entry: voluntary
Part of Speech: adjective
Definition: willing
Synonyms: autonomous, chosen, deliberate, designful, discretional, elected, free, free-willed, freely, gratuitous, honorary, independent, intended, intentional, opted, optional, spontaneous, unasked, unbidden, uncompelled, unconstrained, unforced, unpaid, unprescribed, volitional, volunteer, willed, willful, wished, witting
Antonyms: forced, involuntary, obligatory, unwilling
Main Entry: unrestrained
Part of Speech: adjective
Definition: excessive
Synonyms: abandoned, audacious, bizarre, blunt, candid, dissolute, exaggerated, extravagant, flamboyant, frank, free, immoderate, immoral, impertinent, impotent, incontinent, indiscriminate, inordinate, intemperate, lawless, licentious, limitless, loose, open, plenary, profligate, rampant, riotous, saturnalian, spontaneous, unbounded, unbridled, unchecked, uncontrolled, uncurbed, ungoverned, unhampered, uninhibited, unlimited, unrestricted, wanton, wild
Antonyms: restrained, restricted
Main Entry: knee-jerk
Part of Speech: adjective
Definition: automatic
Synonyms: expected, predictable, reflex, spontaneous
Main Entry: extemporaneous
Part of Speech: adjective
Definition: improvised
Synonyms: ad hoc, ad-lib, automatic, autoschediastic, by ear, casual, expedient, extemporary, extempore, fake, free, immediate, impromptu, improv, improvisatory, improviso, informal, jamming, made-up, makeshift, offhand, on impulse, on-the-spot, snap, spontaneous, spur-of-the-moment, toss off, toss out, unplanned, unpremeditated, unprepared, unrehearsed, unstudied, winging it
Notes: extemporaneous means 'prepared in advance and carried out with few or no notes' while impromptu means 'totally unprepared, performed on the spur of the moment' - but this distinction has been all but lost
Antonyms: deliberate, planned, premeditated, prepared, rehearsed
Main Entry: reflex
Part of Speech: adjective
Definition: mechanical
Synonyms: automatic, habitual, involuntary, knee-jerk, responsive, spontaneous, unthinking
Main Entry: untaught
Part of Speech: adjective
Definition: uneducated
Synonyms: ignorant, illiterate, instinctive, natural, spontaneous, uninstructed, unlearned, unschooled, untrained, untutored
Antonyms: learned, taught
Main Entry: unstudied
Part of Speech: adjective
Definition: impromptu
Synonyms: artless, extemporaneous, extemporary, extempore, instinctive, naive, natural, offhand, spontaneous
Antonyms: prepared, studied
Main Entry: unplanned
Part of Speech: adjective
Definition: not planned
Synonyms: accidental, adventitious, aleatory, fortuitous, haphazard, impromptu, random, spontaneous, undesigned, unexpected, unintended, unintentional
Antonyms: planned
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