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Synonyms

involuntary

American  
[in-vol-uhn-ter-ee] / ɪnˈvɒl ənˌtɛr i /

adjective

  1. not voluntary; independent of one's will; not by one's own choice.

    an involuntary listener; involuntary servitude.

  2. unintentional; unconscious.

    an involuntary gesture.

    Synonyms:
    instinctive
    Antonyms:
    intentional
  3. Physiology. acting independently of or done or occurring without volition.

    involuntary muscles.

    Synonyms:
    uncontrolled, reflex

involuntary British  
/ -trɪ, ɪnˈvɒləntərɪ /

adjective

  1. carried out without one's conscious wishes; not voluntary; unintentional

  2. physiol (esp of a movement or muscle) performed or acting without conscious control

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

involuntary Scientific  
/ ĭn-vŏlən-tĕr′ē /
  1. Not under conscious control. Most of the biological processes in animals that are vital to life, such as contraction of the heart, blood flow, breathing, and digestion, are involuntary and controlled by the autonomic nervous system.


Related Words

See automatic.

Other Word Forms

  • involuntarily adverb
  • involuntariness noun

Etymology

Origin of involuntary

From the Late Latin word involuntārius, dating back to 1525–35. See in- 3, voluntary

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When companies are forced to hand over to regulators, or opposing counsel, internal records of what their algorithms have been up to, the result is a kind of involuntary transparency.

From The Wall Street Journal

The statute of limitations for involuntary manslaughter, an easier case to prove than the voluntary manslaughter charges that Middleton brought, expired in late 2021.

From Los Angeles Times

“It made no sense to me. Then I saw that the reason the prepayments were so high is that they were involuntary.”

From Literature

The charge of involuntary manslaughter carries a sentence of three months to two years in prison in the Caribbean country.

From Barron's

However, just two years later in 2023, it was put into involuntary liquidation.

From BBC