Sample Sentences for
spontaneous
(editor-reviewed)

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    The group broke into spontaneous laughter.
    spontaneous = sudden and unplanned
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    "Spontaneous combustion is a form of harm, Mr. D," Chiron put in.  (source)
    Spontaneous = happening without apparent external cause
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    No, the bomber battle in 8 and my intervention in 2 were spontaneous, rash, and definitely unauthorized.  (source)
    spontaneous = unplanned
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Show 10 more with 4 word variations
  • •
    Fiery, spontaneous, passionate—as he imagined most artists to be.  (source)
    spontaneous = behaving in an instinctive, uninhibited manner
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    Then she turned and left the stage, left him there alone, standing and facing the crowd, which began spontaneously the collective murmur of his name.  (source)
    spontaneously = happening or arising without plan
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    Spontaneity and whim are the order of the day.  (source)
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    He was a face on a pole, a man not yet out of his thirties who carried something stale and unspontaneous, an inward tension that kept him apart.†  (source)
    standard prefix: The prefix "un-" in unspontaneous means not and reverses the meaning of spontaneous. This is the same pattern you see in words like unhappy, unknown, and unlucky.
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    It's this course where each boy in class has to get up in class and make a speech. You know. spontaneous and all.  (source)
    Spontaneous = without planning
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    Spontaneously several voices cried out.  (source)
    Spontaneously = happening without plan or forethought
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    ...when my mother came out into the hall, her hair hanging loosely down her back; she had a fondue fork in her hand and a look of surprise on her face. It was planned spontaneity, right down to her bare feet, something she never did.  (source)
    spontaneity = natural behavior (as though unplanned)
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    Even though I was spontaneous and free at Aunt Mary's, I still became lifeless and shy around my classmates.  (source)
    spontaneous = natural, instinctive, and uninhibited (rather than planned or guarded)
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    Normal cells didn't spontaneously become cancerous, he said; they were simply taken over by HeLa.  (source)
    spontaneously = without external cause
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    The fifth time they met, under the spell of Rosa's youthful spontaneity—halfway through a heated discussion...—Litvinoff surprised himself by proposing they go hear a concert together.  (source)
    spontaneity = behaving in an instinctive, uninhibited manner
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