1. (adj)involuntary, nonvoluntary, unvoluntary not subject to the control of the will Synonyms: nonvoluntary, unvoluntary, involuntary Antonyms: unpaid, uncoerced, self-imposed, willful, wilful, willing, voluntary, volunteer(a), unforced, freewill
2. (adj)involuntary controlled by the autonomic nervous system; without conscious control Synonyms: nonvoluntary, unvoluntary Antonyms: unforced, freewill, volunteer(a), voluntary, uncoerced, wilful, willful, willing, unpaid, self-imposed