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   Spon·ta·ne·ous

   /spänˈtānēəs/

   

   adjective

   • 1. performed or occurring as a result of a sudden inner impulse or inclination and without premeditation or external stimulus: "the audience broke into spontaneous applause" Similar unforcedvoluntaryunconstrainedunpromptedunbiddenunsolicitedunplannedunpremeditatedunrehearsedimpulsiveimpetuousunstudiedimpromptuspur-of-the-momentextemporeextemporaneousunschooleduntaughtuninstructedinformal:off-the-cuffOpposite plannedforcedcalculated
   • ▪ (of a person) having an open, natural, and uninhibited manner. Similar naturaluninhibitedrelaxedunselfconsciousunaffectedeasyfree and easyimpulsiveimpetuousopengenuineOpposite inhibited
   • ▪ (of a process or event) occurring without apparent external cause: "spontaneous miscarriages"
   • ▪ (of movement or activity in an organism) instinctive or involuntary: "the spontaneous mechanical activity of circular smooth muscle" Similar reflexautomaticknee-jerkinvoluntaryunthinkingunconsciousinstinctiveinstinctualinformal:gutOpposite conscious
   • ▪ (of a plant) growing naturally and without being tended or cultivated.

   Word Origin mid 17th century: from late Latin spontaneus (from (sua) sponte ‘of (one's) own accord’) + -ous.

   Derivatives

   • 1. spontaneousness noun

   Scrabble Points: 13

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2. People also ask

   What does spontaneous mean?

   • The meaning of SPONTANEOUS is proceeding from natural feeling or native tendency without external constraint. How to use spontaneous in a sentence. Did you know?

   Spontaneous Definition & Meaning - Merriam-Webster

   www.merriam-webster.com/dictionary/spontaneous

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   What does it mean if things happen spontaneously?

   • That's spontaneous. Spontaneous things happen all of a sudden, on the spur of the moment, without being planned. Spontaneous can also refer to things that happen without outside influence. Your parents will be happy if you do your chores spontaneously instead of waiting till they nag you.

   Spontaneous - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com/dictionary/spontaneous

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   What does spontaneous behaviour mean?

   • (countable) Spontaneous behaviour. (biology) The tendency to undergo change, characteristic of both animal and vegetable organisms, and not restrained or checked by the environment. (biology) The tendency to activity of muscular tissue, including the voluntary muscles, when in a state of healthful vigour and refreshment.

   What is the noun for spontaneous? - WordHippo

   www.wordhippo.com/what-is/the-noun-for/spontaneous.html

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   What is a spontaneous event?

   • A spontaneous event happens because of processes within something rather than being caused by things outside it. I had another spontaneous miscarriage at around the 16th to 18th week. ...a spontaneous explosion. Usually a woman's breasts produce milk spontaneously after the birth. These images surface spontaneously in dreams.

   SPONTANEOUS definition and meaning | Collins English Dictionary

   www.collinsdictionary.com/dictionary/english/spontaneous

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3. www.merriam-webster.com › dictionary › spontaneousSpontaneous Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › spontaneous

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   Spontaneous means proceeding from natural feeling or native tendency without external constraint, arising from a momentary impulse, or controlled and directed internally. The word comes from Latin sponte, meaning "of one's free will, voluntarily". See synonyms, examples, etymology, and more.

4. www.dictionary.com › browse › spontaneousSPONTANEOUS Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › spontaneous

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   Spontaneous means coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned. Learn more about the origin, usage, and related words of spontaneous on Dictionary.com.

5. Videos

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6. dictionary.cambridge.org › english › spontaneousSPONTANEOUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › english › spontaneous

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   Spontaneous means happening or done in a natural, often sudden way, without any planning or without being forced. Learn more about the meaning, usage and pronunciation of spontaneous with examples and translations.

7. dictionary.cambridge.org › english › spontaneousSPONTANEOUS | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › spontaneous

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   Spontaneous means happening or done in a natural, often sudden way, without any planning or without being forced. Learn more about the meaning, usage and pronunciation of spontaneous with examples and related words.

8. www.vocabulary.com › dictionary › spontaneousSpontaneous - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › spontaneous

   spontaneous: 1 adj said or done without having been planned or written in advance Synonyms: ad-lib , unwritten unscripted not furnished with or using a script adj happening or arising without apparent external cause “ spontaneous laughter” “ spontaneous combustion” “a spontaneous abortion” Synonyms: self-generated impulsive , unprompted ...

9. www.oxfordlearnersdictionaries.com › us › definitionspontaneous adjective - Definition, pictures, pronunciation ...

   www.oxfordlearnersdictionaries.com › us › definition

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   Learn the meaning, pronunciation and usage of the word spontaneous, which means not planned but done because you suddenly want to do it. See examples, synonyms and word origin.

10. www.collinsdictionary.com › english › spontaneousSPONTANEOUS definition and meaning | Collins English Dictionary

    www.collinsdictionary.com › english › spontaneous

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    4 days ago · Spontaneous means done or happening without planning or external influence. It can also mean arising from natural forces or processes, or growing naturally. See synonyms, antonyms, examples and pronunciation of spontaneous in British and American English.