" involuntarily "

1: as in necessarily, inevitably;

•  Synonyms : 

•  ineluctably,

•  inescapably,

•  inevitably,

•  ipso facto,

•  necessarily,

•  needs,

•  perforce,

•  unavoidably

•  Antonyms : 

• (N/A)

1: not made or done willingly or by choice;

  * e.g., " ... my long stays on the sidelines during our football games were strictly involuntary "

•  Synonyms : 

•  coerced,

•  forced,

•  unintended,

•  unintentional,

•  unwilling,

•  will-less

•  Antonyms : 

•  deliberate,

•  freewill,

•  intentional,

•  uncoerced,

•  unforced,

•  voluntary,

•  willful,

•  willing

2: done instantly and without conscious thought or decision;

  * e.g., " ... breathing is involuntary "

•  Synonyms : 

•  automatic,

•  instinctive,

•  instinctual,

•  knee-jerk,

•  mechanic,

•  mechanical,

•  robotic,

•  spontaneous

•  Antonyms : 

•  elective,

•  optional,

•  voluntary

3: forcing one's compliance or participation by or as if by law;

  * e.g., " ... the abolition of involuntary servitude by civilized society "

•  Synonyms : 

•  compulsory,

•  forced,

•  imperative,

•  incumbent,

•  mandatory,

•  necessary,

•  nonelective,

•  obligatory,

•  peremptory,

•  required

•  Antonyms : 

• (N/A)