unchallengeable
/ˌʌnˈtʃælɪndʒəbəl/
adjective
- Not able to be questioned, disputed, or doubted; absolutely certain or authoritative.
- The historical document provided unchallengeable proof of the treaty.
- In the small town, the mayor's word was considered unchallengeable.
- The scientist presented unchallengeable evidence for her theory.
- Not able to be competed against or surpassed; dominant.
- Her unchallengeable position as the top chess player lasted for years.
- The team's unchallengeable lead made the final game boring.
- The company held an unchallengeable monopoly on the technology.
Antonyms