voluntarily

As an adjective unconstrained

is not constrained.

As an adverb voluntarily is

in a voluntary manner.

As adverbs the difference between automatically and voluntarily

is that automatically is in an automatic manner while voluntarily is in a voluntary manner.

As adverbs the difference between voluntarily and abundantly

is that voluntarily is in a voluntary manner while abundantly is in an abundant manner; in a sufficient degree; fully; amply; plentifully; in large measure.

Voluntarily is a related term of unconditionally.

As adverbs the difference between voluntarily and unconditionally

is that voluntarily is in a voluntary manner while unconditionally is without condition, absolutely.

As adverbs the difference between volitionally and voluntarily

is that volitionally is willingly or decidedly while voluntarily is in a voluntary manner.

Voluntarily is a related term of generously.

As adverbs the difference between voluntarily and generously

is that voluntarily is in a voluntary manner while generously is in a generous manner, in a way that is giving or ample.

As adverbs the difference between actively and voluntarily

is that actively is in an active manner while voluntarily is in a voluntary manner.

As adverbs the difference between voluntarily and forcibly

is that voluntarily is in a voluntary manner while forcibly is in a forcible manner.

As adverbs the difference between willingly and voluntarily

is that willingly is of one’s own free will; freely and spontaneously while voluntarily is in a voluntary manner.