involuntary Meaning, Definition & Usage

adjective not subject to the control of the will
nonvoluntary; unvoluntary.
- involuntary manslaughter
- involuntary servitude
- an involuntary shudder
- It (becoming a hero) was involuntary. They sank my boat"- John F.Kennedy
adjective controlled by the autonomic nervous system; without conscious control
- involuntary muscles
- gave an involuntary start

L. involuntarius. See In- not, and Voluntary.

Not having will of the power of choice.
Not under the influence or control of the will; not voluntary; as, the involuntary movements of the body; involuntary muscle fibers.
Not proceeding from choice; done unwillingly; reluctant; compulsory; as, involuntary submission.