Sadly, too many school districts have proven themselves incapable of voluntarily implementing proven strategies.
He has cooperated fully with authorities and voluntarily testified before the grand jury for several hours.
We knew who these bundlers were because both Obama and McCain voluntarily disclosed their identities.
Upon order to withdraw, Kravitz voluntarily remained to provide protective fire for the retiring elements.
Ultimately, Kolbe came out later that year and was the first Republican in the House to voluntarily identify as gay.
He voluntarily proposed to surrender himself to the besiegers.
He will make his choice knowingly, deliberately, and voluntarily.
Finding that it will not voluntarily acquire these facts, we thrust them into its mind by force of threats and punishment.
Such a position is much too advantageous to voluntarily surrender.
Yet, I do not think the Corsican is often a voluntarily cruel driver.
late 14c. (implied in voluntarily), from Latin voluntarius "of one's free will," from voluntas "will," from the ancient accusative singular present participle of velle "to wish" (see will (v.)). Originally of feelings, later also of actions (mid-15c.).
voluntary vol·un·tar·y (vŏl'ən-těr'ē)
Arising from or acting on one's own free will.
Normally controlled by or subject to individual volition, as of respiration.
Capable of making choices; having the faculty of will.