Synonyms of voluntarily

2 Syllables
freely
3 Syllables
willingly, consciously, unasked, willfully, wittingly
4 Syllables
apurpose, meaningfully, undemanded, spontaneously, optionally, unrequested
5 Syllables
calculatingly, purposively, intentionally, purposefully, unreservedly
6 Syllables
deliberately, premeditatedly
7 Syllables
premeditatively