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involuntary  - definition and synonyms

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adjective involuntary pronunciation in British English /ɪnˈvɒləntəri/
  1. 1
    an involuntary movement, sound, or reaction is made suddenly and in a way that you cannot control

    an involuntary gasp/shiver/twitch

  2. 2
    happening or done without being intended

    involuntary manslaughter

  3. 3
    biology relating to processes in your body such as digestion that you are not conscious of controlling but which are controlled automatically by the brain

derived word

involuntarily

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