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involuntary
01
happening without having any intention or control
02
controlled by the autonomic nervous system; without conscious control
Example
Hiccups occur due to involuntary spasms of the diaphragm.
Involuntary manslaughter may result from negligent actions that lead to someone's death, such as a fatal workplace accident.
The control of respiration involves both voluntary and involuntary mechanisms.
Nerve impulses travel along the spinal cord to control voluntary and involuntary functions.
Vision problems, including sensitivity to light and involuntary eye movements, are common in people with albinism.