Involuntary
WordNet

adjective


(1)   Not subject to the control of the will
"Involuntary manslaughter"
"Involuntary servitude"
"An involuntary shudder"
"It (becoming a hero) was involuntary. They sank my boat"- John F.Kennedy
(2)   Controlled by the autonomic nervous system; without conscious control
"Involuntary muscles"
"Gave an involuntary start"
WiktionaryText

Adjective


involuntary
  1. Without intention; unintentional.
    He involuntarily overheard the conversation.
  2. Not voluntary or willing; contrary or opposed to explicit will or desire; unwilling.
    He found himself the involuntary witness in the trial.
 
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