Optional
Optional adjective - Subject to one's freedom of choice.
Unpaid and optional are semantically related. In some cases you can use "Unpaid" instead an adjective "Optional".
Nearby Words: option, optionally
Unpaid
Unpaid adjective - Not yet paid.
Mutual synonyms
Related pairs
Cite this Source
Unpaid and Optional. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/optional/unpaid
Optional & Unpaid. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/optional/unpaid>.
Unpaid or Optional. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/optional/unpaid.
Google Ngram Viewer shows how "optional" and "unpaid" have occurred on timeline