In-vŏl'un-ta-ry, a.

[Prefix in, not, and voluntary; Lat. involuntarius, Sp. involuntario, It. involontario, Fr. involontaire.]

1. Not having will or the power of choice.
2. Independent of will or choice; as, the motions of the heart and arteries are involuntary, but not against the will.
3. Not proceeding from choice; not done willingly; opposed to the will; as, an involuntary submission to a master.