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The definition of 'involuntary' & the word 'involuntary' in example sentences or phrases

Adjective
1
not subject to the control of the will; ; ; ; - John F.Kennedy
  1. involuntary manslaughter
  2. involuntary servitude
  3. an involuntary shudder
  4. It (becoming a hero) was involuntary. They sank my boat
2
controlled by the autonomic nervous system; without conscious control
  1. involuntary muscles
  2. gave an involuntary start
3
not subject to the control of the will

Synonyms of the word 'involuntary' & Antonyms of the word 'involuntary'.

Adjective
Synonymsnonvoluntary, unvoluntary, nonvoluntary, unvoluntary,
Antonymsvoluntary, voluntary, voluntary,