Optional
Optional adjective - Subject to one's freedom of choice.
Volunteer and optional are semantically related. In some cases you can use "Volunteer" instead an adjective "Optional".
Nearby Words: option, optionally
Mutual synonyms
Related pairs
- free and optional
- free and volunteer
- willful and optional
- willful and volunteer
- willing and optional
- willing and volunteer
- spontaneous and optional
- spontaneous and volunteer
- gratuitous and optional
- gratuitous and volunteer
- unasked and optional
- unasked and volunteer
- unbidden and optional
- unbidden and volunteer
Cite this Source
Volunteer and Optional. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/optional/volunteer
Optional & Volunteer. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/optional/volunteer>.
Volunteer or Optional. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/optional/volunteer.
Google Ngram Viewer shows how "optional" and "volunteer" have occurred on timeline