1. Passif.
2. Instinctif. Mouvement involontaire.
ETYM Latin involuntarius. Related to In- not, and Voluntary.
1. Not subject to the control of the will; SYN. nonvoluntary, unvoluntary.
2. (Physiology) Controlled by the autonomic nervous system; without conscious control.
Not aware or knowing; SYN. unaware.