Unchallenged and Unsure
Opposite meaning words
Unchallenged
Unchallenged adjective - Generally agreed upon; not subject to dispute.
Nearby Word: unchallengeable
Unsure
Unsure adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Unchallenged is an antonym for unsure.
Cite this Source
Unsure and Unchallenged. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/unchallenged/unsure
Unchallenged & Unsure. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/unchallenged/unsure>.
Unsure or Unchallenged. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/unchallenged/unsure.
Google Ngram Viewer shows how "unchallenged" and "unsure" have occurred on timeline