Adjective involuntary has 2 senses
- involuntary, nonvoluntary, unvoluntary - 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
Antonyms: voluntary, by choice, freewill, intentional, willful, wilful, self-imposed, uncoerced, unforced, willing, unpaid, volunteer, volitional
- involuntary - controlled by the autonomic nervous system; without conscious control; "involuntary muscles"; "gave an involuntary start"
Antonym: voluntary
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