Flexible
Optional
Optional adjective - Subject to one's freedom of choice.
Flexible and optional are semantically related. Sometimes you can use "Flexible" instead an adjective "Optional".
Nearby Words: option, optionally
Mutual synonyms
Both words in one sentence
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When both gender and species are optional, your tastes can be very flexible indeed.
Source: Extreme Omnisexual
Cite this Source
Optional and Flexible. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/flexible/optional
Flexible & Optional. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/flexible/optional>.
Optional or Flexible. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/flexible/optional.
Google Ngram Viewer shows how "flexible" and "optional" have occurred on timeline