Non-compulsory
Optional and non-compulsory are semantically related In some cases you can use "Optional" instead an adjective phrase "Non-compulsory".
Optional
Optional adjective - Subject to one's freedom of choice.
Non-compulsory and optional are semantically related in voluntary topic. You can use "Non-compulsory" instead an adjective "Optional".
Nearby Words: option, optionally
Cite this Source
Optional and Non-compulsory. (2017). Retrieved 2026, July 22, from https://thesaurus.plus/related/non-compulsory/optional
Non-compulsory & Optional. N.p., 2017. Web. 22 Jul. 2026. <https://thesaurus.plus/related/non-compulsory/optional>.
Optional or Non-compulsory. 2017. Accessed July 22, 2026. https://thesaurus.plus/related/non-compulsory/optional.