Gratuitous and Voluntary

Gratuitous

Gratuitous adjective - Not costing or charging anything.
Usage example: they will throw in a gratuitous box of chocolates when you spend $30 or more in their shop

Voluntary is a synonym for gratuitous in free topic. In some cases you can use "Voluntary" instead an adjective "Gratuitous", when it comes to topics like given freely. popular alternative

Nearby Words: gratuity, gratuitously

Voluntary

Voluntary adjective - Done, made, or given with one's own free will.

Gratuitous is a synonym for voluntary in willing topic. You can use "Gratuitous" instead an adjective "Voluntary", if it concerns topics such as given freely. popular alternative

Cite this Source
Voluntary and Gratuitous. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/gratuitous/voluntary
Gratuitous & Voluntary. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/gratuitous/voluntary>.
Voluntary or Gratuitous. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/gratuitous/voluntary.
Google Ngram Viewer shows how "gratuitous" and "voluntary" have occurred on timeline