Not required
Optional and not required are semantically related in unnecessary topic. In some cases you can use "Optional" instead an adjective phrase "Not required".
Optional
Optional adjective - Subject to one's freedom of choice.
Not required and optional are semantically related in possible topic. You can use "Not required" instead an adjective "Optional", if it concerns topics such as voluntary.
Nearby Words: option, optionally
Mutual synonyms
Related pairs
- free and not required
- free and optional
- open and not required
- open and optional
- unessential and not required
- unessential and optional
- useless and not required
- useless and optional
- unnecessary and not required
- unnecessary and optional
- needless and not required
- needless and optional
- extra and not required
- extra and optional
Both terms in one sentence
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Bonus Boss: While certain bosses can be skipped with a bit of Sequence Breaking, Murdiella Mal, Carsejaw the Cruel, Ronin Cran and The Three are completely optional and not required to beat the game.
Source: Videogame / Salt and Sanctuary - The glitch is usually (keyword being "usually") fixable by accessing the Bat Computer and going to the upgrade menu, and thankfully the upgrades are optional and not required to finish the game, but still frustrating when you consider upgrades are your reward for finding the red bricks in hero mode.
Source: Scrappy Mechanic / Action -
Bonus Boss: While most bosses are technically optional, defeating the Boss of Showa Town is not required for any official quest.
Source: Video Game / MapleStory
Cite this Source
Optional and Not required. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/not_required/optional
Not required & Optional. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/not_required/optional>.
Optional or Not required. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/not_required/optional.
Google Ngram Viewer shows how "not required" and "optional" have occurred on timeline