Optional
Optional adjective - Subject to one's freedom of choice.
Special and optional are semantically related. In some cases you can use "Special" instead an adjective "Optional".
Nearby Words: option, optionally
Mutual synonyms
Both words in one sentence
- Optional Private Actions are the only way to build Relationship Values in Star Ocean: The Second Story besides special items and fighting a ridiculous number of battles together.
Source: Optional Character Scene - Instead, they were crammed into the HTH cherries examples list, thus making them look like they were completely optional and used exclusively in special cases, when they really shouldn't have.
Source: Grappling with Grappling Rules - They can be skipped completely, but often lead to optional bosses, special equipment, secrets revealed about the party members, or just leveling up the characters more.
Cite this Source
Special and Optional. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/optional/special
Optional & Special. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/optional/special>.
Special or Optional. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/optional/special.
Google Ngram Viewer shows how "optional" and "special" have occurred on timeline