involuntary

involuntary

CEFR: C1-C2 /in-vol-un-tary/ [ih2.n.v.aa1.l.ah0.n.t.eh2.r.iy0]

Definition: Done without will or conscious control;(Especially of muscles or nerves) concerned in bodily processes that are not under the control of the will

Example Sentences:
The involuntary muscles are controlled by structures deep within the brain and the upper part of the spinal cord called the brain stem.