"nonvoluntary" in the adjective sense
1. involuntary, nonvoluntary, unvoluntary
not subject to the control of the will
"involuntary manslaughter"
"involuntary servitude"
"an involuntary shudder"
"It (becoming a hero) was involuntary. They sank my boat"- John F.Kennedy
Source: WordNet® (An amazing lexical database of English)
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