involuntary muscle

noun

A muscle that is not controlled by individual volition, e.g., cardiac muscle and smooth muscle.

Meanings

nouninvoluntary muscle (countable and uncountable, plural involuntary muscles)

plural involuntary muscles

  1. countableuncountableanatomyA muscle that is not controlled by individual volition, e.g., cardiac muscle and smooth muscle.

Synonyms & antonyms

nouna muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Chinese Mandarin 不隨意肌 /不随意肌
  • 不隨意肌 /不随意肌 (bùsuíyìjī)involuntary muscle
Dutch onwillekeurige spier
  • onwillekeurige spierinvoluntary muscle
Finnish tahdosta riippumaton lihas
  • tahdosta riippumaton lihasinvoluntary muscle
French muscle involontaire
  • muscle involontaireinvoluntary muscle
Māori auau aunoa
  • auau aunoainvoluntary muscle
Polish mięsień niepodległy woli
  • mięsień niepodległy woliinvoluntary muscle
Romanian mușchi involuntar, mușchi necomandabil
  • mușchi involuntarinvoluntary muscle
  • mușchi necomandabilinvoluntary muscle
Turkish istemsiz kas
  • istemsiz kasinvoluntary muscle
Cite this entry
APA

involuntary muscle. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/involuntary%20muscle

MLA

“involuntary muscle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/involuntary%20muscle. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “involuntary muscle,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/involuntary%20muscle.

Source: involuntary muscle on Wiktionary, CC BY-SA 4.0.