involuntary

/ɪnˈvɑlənˌtɛri/
adjective
  1. Done without intention or conscious control; automatic or reflex.
    • He let out an involuntary gasp when he saw the surprise.
    • Blinking is an involuntary action that protects your eyes.
    • Involuntary muscle movements can be a sign of a neurological disorder.
  2. Done against someone's will; forced or compelled.
    • Involuntary servitude is prohibited by the Constitution.
    • The patient was placed under involuntary psychiatric hold for his own safety.
    • She was a victim of involuntary displacement after the flood.
What does "involuntary" mean? | whatsthatwordmean | whatsthatwordmean