voluntary

adj 1: of your own free will or design; not forced or compelled;

"man is a voluntary agent"; "participation was

voluntary"; "voluntary manslaughter"; "voluntary

generosity in times of disaster"; "voluntary social

workers"; "a voluntary confession" [ant: {involuntary}]

2: (physiology) controlled by individual volition; "voluntary

motions"; "voluntary muscles" [ant: {involuntary}]

n 1: a person who freely enlist for military service [syn: {volunteer},

{military volunteer}] [ant: {draftee}]

2: composition (often improvised) for a solo instrument

(especially solo organ) and not a regular part of a

service or performance