Thesaurus
Synonyms & Antonyms of unchallengeable
not capable of being challenged or proved wrong
- the contention that there are certain unchallengeable rules governing proper grammar
Synonyms for unchallengeable
Words Related to unchallengeable
Near Antonyms for unchallengeable
- academic
- (also academical),
- hypothetical,
- speculative,
- theoretical
- (also theoretic)
Antonyms for unchallengeable
Learn More About unchallengeable
Cite this Entry
“Unchallengeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unchallengeable. Accessed 1 Dec. 2021.
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Time Traveler for unchallengeable
The first known use of unchallengeable was in 1611
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