Involuntary1. (a.) Against one's will; without choice; or not under the control of the will; as, involuntary muscles.
2. (a.) Not having will or the power of choice.
3. (a.) Not proceeding from choice; done unwillingly; reluctant; compulsory; as, involuntary submission.
Thesaurus Entries
at odds, automatic, averse, binding, blind, casual, compulsive, compulsory, conditioned, cursory, dictated, differing, disagreeing, disinclined, disobedient, forced, fractious, gut, ill-advised, ill-considered, ill-devised, imperative, impulsive, inadvertent, indeliberate, indisposed, indocile, inevitable, inherent, innate, instinctive, instinctual, libidinal, mandatory, mechanical, mutinous, natural, necessary, obligatory, opposed, perfunctory, recalcitrant, reflex, reflexive, refractory, required, resistant, snap, spontaneous, subliminal, sulky, sullen, unadvised, uncalculated, unconscious, unconsenting, unconsidered, uncontrollable, uncontrolled, undeliberate, undeliberated, undesigned, unguarded, unguided, unintended, unintentional, unlearned, unmeant, unmeditated, unplanned, unpremeditated, unprompted, unpurposed, unstudied, unthinking, unthought-of, unwilled, unwilling, unwitting