Arbitrary
Arbitrary adjective - Having or showing a tendency to force one's will on others without any regard to fairness or necessity.
Optional is a synonym for arbitrary in whimsical topic. In some cases you can use "Optional" instead an adjective "Arbitrary", when it comes to topics like random, discretionary.
Optional
Optional adjective - Subject to one's freedom of choice.
Arbitrary is a synonym for optional in possible topic. You can use "Arbitrary" instead an adjective "Optional", if it concerns topics such as discretionary.
Nearby Words: option, optionally
Mutual synonyms
Related pairs
- capricious and arbitrary
- capricious and optional
- whimsical and arbitrary
- whimsical and optional
- fanciful and arbitrary
- fanciful and optional
- chance and arbitrary
- chance and optional
- wanton and arbitrary
- wanton and optional
- unrestricted and arbitrary
- unrestricted and optional
- wayward and arbitrary
- wayward and optional
Both words in one sentence
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Every time there's an arbitrary minimum limit of how many we must find before we can go to the next world, but finding ALL of them is optional.
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Arbitrary Mission Restriction: Of the optional objective variety.
Source: Video Game / Tales of Xillia -
Arbitrary Mission Restriction: The series loves the optional objective variant.
Source: Franchise / Assassin's Creed
Cite this Source
Optional and Arbitrary. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/arbitrary/optional
Arbitrary & Optional. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/arbitrary/optional>.
Optional or Arbitrary. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/arbitrary/optional.
Google Ngram Viewer shows how "arbitrary" and "optional" have occurred on timeline