involuntary

The definition of involuntary is done not by choice, or something done by accident or automatically.

(adjective)

An example of something involuntary is blinking; an involuntary action.

See involuntary in Webster's New World College Dictionary

adjective

not voluntary; specif.,

Origin: LL involuntarius

Related Forms:

See involuntary in American Heritage Dictionary 4

adjective

Acting or done without or against one's will: an involuntary participant in what turned out to be an argument.
Not subject to control of the volition: gave an involuntary start. See Synonyms at spontaneous.

Related Forms:

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