Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “involuntary”

involuntary

adjective     /ɪnˈvɒl.ən.tər.i/ US  /-ˈvɑː.lən.ter.i/
not done by choice; done unwillingly, or without the decision or intention of the person involved: A sharp tap on the knee usually causes an involuntary movement of the lower leg.Not expected or planned involuntarily     /-ˈter.əl.i/ adverb Arthur shivered involuntarily as he came out of the building.Not expected or planned
(Definition of involuntary adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of involuntary

Definitions of “involuntary” in other dictionaries

Word of the Day

warm-up

something that you do to prepare yourself for an activity, especially gentle exercises before a physical activity

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More