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