Required
Required adjective - Forcing one's compliance or participation by or as if by law.
Usage example: formal instruction in driving is required in this state before you can get your driver's license
Unnecessary is an antonym for required.
Nearby Words: requirement, requiring
Unnecessary
Unnecessary adjective - Not needed by the circumstances or to accomplish an end.
Usage example: that large suitcase is unnecessary—we are only going to be away for a couple of days
Nearby Word: unnecessarily
Both words in one sentence
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Instead of accidentally making your time travel unnecessary or impossible by meddling with the past, your meddling somehow made it required or possible in the first place.
Source: Temporal Paradox -
Awesome, but Impractical: The main story is easy enough to make most of the more powerful Megas such as ZeedMillenniummon unnecessary when compared to the amount of time required to get them.
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It also puts a lot of unnecessary strain on the gun's moving parts, and is unsafe, as a considerable amount of force is required to rack the slide.
Source: One-Handed Shotgun Pump
Cite this Source
Unnecessary and Required. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/required/unnecessary
Required & Unnecessary. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/required/unnecessary>.
Unnecessary or Required. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/required/unnecessary.
Google Ngram Viewer shows how "required" and "unnecessary" have occurred on timeline