Exact Match:
- spontaneous
- happening or arising without apparent external cause; "spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion"
Synonyms:
- ad lib,
- arbitrary,
- automated,
- automatic,
- automatous,
- autonomous,
- bat,
- baton,
- billy,
- billy club,
- bludgeon,
- casual,
- club,
- cybernated,
- discretional,
- discretionary,
- elective,
- extemporaneous,
- extempore,
- free,
- free will,
- gratuitous,
- gut,
- ill-advised,
- ill-considered,
- ill-devised,
- immediate,
- impetuous,
- impromptu,
- improvised,
- impulsive,
- inadvertent,
- indeliberate,
- independent,
- inherent,
- innate,
- instinctive,
- instinctual,
- involuntary,
- libidinal,
- mace,
- mechanical,
- natural,
- nightstick,
- nonmandatory,
- off the cuff,
- offered,
- offhand,
- optional,
- proffered,
- reflex,
- reflexive,
- self-acting,
- self-active,
- self-adjusting,
- self-closing,
- self-controlled,
- self-cooking,
- self-determined,
- self-determining,
- self-directed,
- self-directing,
- self-dumping,
- self-governed,
- self-governing,
- self-lighting,
- self-operative,
- self-regulative,
- self-starting,
- self-winding,
- self-working,
- semiautomatic,
- simple,
- snap,
- spontoon,
- spur-of-the-moment,
- subliminal,
- truncheon,
- unadvised,
- unannounced,
- unasked,
- unbesought,
- unbidden,
- uncalculated,
- uncalled-for,
- uncoerced,
- uncompelled,
- unconscious,
- unconsidered,
- unconstrained,
- undeliberate,
- undeliberated,
- undesigned,
- unforced,
- unguarded,
- uninfluenced,
- unintended,
- unintentional,
- uninvited,
- unlearned,
- unmeditated,
- unplanned,
- unpremeditated,
- unprepared,
- unpressured,
- unprompted,
- unrehearsed,
- unrequested,
- unrequired,
- unsolicited,
- unsophisticated,
- unsought,
- unstudied,
- unthinking,
- unwilled,
- unwitting,
- voluntary,
- volunteer,
- willful