Optional and Open

Optional

Optional adjective - Subject to one's freedom of choice.

Open and optional are semantically related. in voluntary topic. In some cases you can use "Open" instead an adjective "Optional", when it comes to topics like possible.

Nearby Words: option, optionally

Open

Open adjective - Allowing passage without obstruction.

Optional and open are semantically related. You can use "Optional" instead an adjective "Open".

Nearby Words: opening, openness, opened, opener

Mutual synonyms

Cite this Source
Open and Optional. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/optional/open
Optional & Open. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/optional/open>.
Open or Optional. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/optional/open.
Google Ngram Viewer shows how "optional" and "open" have occurred on timeline