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spontaneous

/spɒnˈteɪnɪəs/adjective

Done on a sudden urge, without any prior planning.

Example sentence

  • In a spontaneous gesture, he bought flowers for everyone in the office.

Approving where 'impulsive' is often critical. A spontaneous person is fun; an impulsive one makes bad decisions.

Featured as word of the day on July 9, 2026.

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