Definition of involuntary adjective from the Oxford Advanced American Dictionary

     

    involuntary

     adjective
    adjective
    NAmE//ɪnˈvɑlənˌtɛri//
     
     
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  1. 1an involuntary movement, etc. is made suddenly, without you intending it or being able to control it an involuntary cry of pain opposite voluntary
  2. 2happening without the person concerned wanting it to the involuntary repatriation of immigrants involuntary childlessness
involuntarily
 
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NAmE//ɪnˌvɑlənˈtɛrəli//
 
adverb
See the Oxford Advanced Learner's Dictionary entry: involuntary