Dubious and Unchallenged

Dubious

Dubious adjective - Giving good reason for being doubted, questioned, or challenged.

Unchallenged is an antonym for dubious.

Nearby Words: dubiety, dubiousness, dubiously

Unchallenged

Unchallenged adjective - Generally agreed upon; not subject to dispute.

Dubious is an antonym for unchallenged in topics: positive, accepted.

Nearby Word: unchallengeable
Cite this Source
Unchallenged and Dubious. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/dubious/unchallenged
Dubious & Unchallenged. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/dubious/unchallenged>.
Unchallenged or Dubious. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/dubious/unchallenged.
Google Ngram Viewer shows how "dubious" and "unchallenged" have occurred on timeline