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Spontaneous synonyms

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Done without conscious thought or volition, as if mechanically
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  1. Done without conscious thought or volition, as if mechanically
  2. (Mech.) Of or pertaining to a transmission, specif. an automotive transmission, designed to change gears automatically
  3. Acting or operating in a manner essentially independent of external influence or control:
Not done of one's own free will; not done by choice
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  1. Not done of one's own free will; not done by choice
  2. Not subject to control of the volition:
  3. Not under conscious control. Most of the biological processes in animals that are vital to life, such as contraction of the heart, blood flow, breathing, and digestion, are involuntary and controlled by the autonomic nervous system.
Of, relating to, or prompted by instinct:
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  1. Of, relating to, or prompted by instinct:
  2. Arising from impulse or natural inclination; done without thought or conscious effort; spontaneous:
  3. Being such by natural inclination rather than conscious effort or study:
  1. Not invited, requested or asked for
  2. Not invited; unasked, undesired, etc.
  3. Not invited, asked, or requested; unasked:
  1. Unintentional; not intended
  2. Not thought out or prepared in advance; spontaneous:
  3. Having no particular purpose, organization, or structure; random.
  1. Improvised; without prior preparation; extemporaneous; unplanned.
  2. Spoken, performed, done, or composed with little or no preparation; extemporaneous:
  3. Without preparation or advance thought; offhand
Spoken or done extemporaneously
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  1. Spoken or done extemporaneously
  2. Uttered, performed, or carried out spontaneously:
Employed on an irregular basis:
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  1. Employed on an irregular basis:
  2. Suited for everyday wear or informal use:
  3. Occurring at irregular or infrequent intervals; occasional:
Not deliberate or intentional; inadvertent:
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  1. Not deliberate or intentional; inadvertent:
  2. Not done on purpose
  3. Not intended or deliberate; inadvertent; unwitting
Produced by or resulting from a sudden impulse
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  1. Produced by or resulting from a sudden impulse
  2. (Physics) Acting within brief time intervals. Used especially of a force.
  3. Inclined to act on impulse rather than thought.
Careless; without sufficient thought or consideration
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  1. Careless; without sufficient thought or consideration
  2. Without planning or thinking ahead
  3. Casual, curt, informal, brusque, etc.
Not forced; caused by oneself.
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  1. Not forced; caused by oneself.
Related genetically:
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  1. Related genetically:
  2. Conforming to the usual or ordinary course of nature:
  3. (Biology) Not produced or changed artificially; not conditioned:
Invariably occurring or appearing; predictable:
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  1. Invariably occurring or appearing; predictable:
  2. Impossible to avoid or prevent; certain to happen.
Too strong, fascinating, compelling, etc. to be resisted or withstood
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  1. Too strong, fascinating, compelling, etc. to be resisted or withstood
  2. Impossible to resist:
  3. Having an overpowering appeal:
That cannot be avoided; inevitable
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  1. That cannot be avoided; inevitable
  2. Impossible to avoid; inevitable.
That cannot be resisted; irresistible
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  1. That cannot be resisted; irresistible
  2. Impossible to resist; irresistible:
  3. Without power to resist; unresisting
Not willing or inclined; reluctant; loath; averse
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  1. Not willing or inclined; reluctant; loath; averse
  2. Done, said, given, etc. reluctantly
  3. Not willing; hesitant or loath:
Occurring in the absence of conscious awareness or thought:
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  1. Occurring in the absence of conscious awareness or thought:
  2. Not known, realized, or intended; not done, said, etc. on purpose
  3. (Sports) engaged in skilled performance without conscious control.
  1. Not able to be controlled, contained or governed.
  2. Impossible to control or govern:
Self-regulating:
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  1. Self-regulating:
  2. Capable of firing continuously until ammunition is exhausted or the trigger is released:
  3. Semiautomatic:
Produced by or resulting from a sudden impulse
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  1. Produced by or resulting from a sudden impulse
  2. (Mech.) Acting briefly and as a result of impulse
  3. Motivated by or resulting from impulse:
Being such by natural inclination rather than conscious effort or study:
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  1. Being such by natural inclination rather than conscious effort or study:
  2. Arising from impulse or natural inclination; done without thought or conscious effort; spontaneous:
  3. Of, relating to, or prompted by instinct:
Not subject to control of the volition:
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  1. Not subject to control of the volition:
  2. Not under conscious control. Most of the biological processes in animals that are vital to life, such as contraction of the heart, blood flow, breathing, and digestion, are involuntary and controlled by the autonomic nervous system.
  3. Not consciously controlled; automatic
Coming in reaction or reflection
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  1. Coming in reaction or reflection
  2. (--- Physiol.) Designating or of an involuntary action, as a sneeze, resulting from a stimulus that is carried by an afferent nerve to a nerve center and the response that is reflected along an efferent nerve to some muscle or gland
  3. Produced as an automatic response or reaction:
Not premeditated; done without plan or forethought
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  1. Not premeditated; done without plan or forethought
  2. Performed, but not planned or thought out in advance; extemporaneous, but not unintentional.
Not controlled by another country or political power; independent:
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  1. Not controlled by another country or political power; independent:
  2. Immoderate in giving or spending; liberal or lavish:
  3. (Chemistry & Physics) Unconstrained; unconfined:
Not forced; caused by oneself.
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  1. Not forced; caused by oneself.
Acting or done willingly and without constraint or expectation of reward:
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  1. Acting or done willingly and without constraint or expectation of reward:
  2. Done or carried on by or made up of volunteers rather than by people paid or conscripted
  3. Brought about by one's own free choice; given or done of one's own free will; freely chosen or undertaken
Said or done on purpose; deliberate:
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  1. Said or done on purpose; deliberate:
  2. Doing as one pleases; self-willed
  3. Obstinately bent on having one's own way:
Employed on an irregular basis:
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  1. Employed on an irregular basis:
  2. Being or occurring between sexual partners who are not in an established relationship:
  3. Suited for everyday wear or informal use:
Requiring or exhibiting little effort or endeavor; undemanding:
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  1. Requiring or exhibiting little effort or endeavor; undemanding:
  2. Affording comfort or relief; soothing:
  3. Socially at ease:
Relaxed or informal in attitude or standards:
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  1. Relaxed or informal in attitude or standards:
  2. Dealing with things in a relaxed manner; not hurried or agitated
  3. (Of a person) calm, relaxed, casual and informal
Designating or of the words, phrases, and idioms characteristic of speech or writing that is casual, ordinary, unceremonious, etc.; colloquial
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  1. Designating or of the words, phrases, and idioms characteristic of speech or writing that is casual, ordinary, unceremonious, etc.; colloquial
  2. Suited for everyday wear or use:
  3. Casual, easy, unceremonious, or relaxed
Not acquired; inherent:
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  1. Not acquired; inherent:
  2. Related genetically:
  3. Of, relating to, or concerning nature:
Free from strain or tension.
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  1. Free from strain or tension.
  2. Having an easy-going mood or temperament.
  3. Easy and informal in manner.
Not ceremonious; informal:
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  1. Not ceremonious; informal:
  2. Without the due formalities; abrupt:
  3. Less formal and ceremonious than is usual or expected; informal; familiar
(Informal) Relaxed, calm, easygoing, etc.; not frenetic, hurried, or forced
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  1. (Informal) Relaxed, calm, easygoing, etc.; not frenetic, hurried, or forced
  2. Having a relaxed or casual atmosphere or character; easygoing:

Synonym Study

  • Automatic suggests an unvarying, machinelike reaction to a given stimulus or situation an automatic response
  • Involuntary refers to that which is done without thought or volition, as a reflex action an involuntary scowl, an involuntary flicker of the eyelid
  • Instinctive suggests an immediate, unwilled response to a stimulus, as if prompted by some natural, inborn tendency he took an instinctive liking to her
  • Impulsive applies to that which is prompted by some external incitement or sudden inner inclination rather than by conscious rational volition an impulsive retort
  • Spontaneous applies to that which is done so naturally that it seems to come without prompting or premeditation a spontaneous demonstration
Find another word for spontaneous. In this page you can discover 48 synonyms, antonyms, idiomatic expressions, and related words for spontaneous, like: automatic, involuntary, instinctive, unbidden, unplanned, impromptu, ad-lib, casual, unintentional, impulsive and offhand.