Spontaneous and Voluntary

Spontaneous

Spontaneous adjective - Done instantly and without conscious thought or decision.

Voluntary is a synonym for spontaneous in impulsive topic. In some cases you can use "Voluntary" instead an adjective "Spontaneous", when it comes to topics like willing, unplanned, unforced. popular alternative

Nearby Words: spontaneity, spontaneously

Voluntary

Voluntary adjective - Done, made, or given with one's own free will.
Usage example: a voluntary contribution to the school's fund-raising drive

Spontaneous is a synonym for voluntary in willing topic. You can use "Spontaneous" instead an adjective "Voluntary". popular alternative

Both words in one sentence

  • Voluntary Shapeshifting: The Spontaneous Metamorphosis surgery allows a Vector to transform once per day into an alternate form that has a different morphism.
Cite this Source
Voluntary and Spontaneous. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/spontaneous/voluntary
Spontaneous & Voluntary. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/spontaneous/voluntary>.
Voluntary or Spontaneous. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/spontaneous/voluntary.
Google Ngram Viewer shows how "spontaneous" and "voluntary" have occurred on timeline