Optional and Unpaid

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.

Optional and unpaid are semantically related. Sometimes you can use "Optional" instead an adjective "Unpaid".
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