Unreturned
Unchallenged and unreturned are semantically related. In some cases you can use "Unchallenged" instead an adjective "Unreturned".
Unchallenged
Unchallenged adjective - Generally agreed upon; not subject to dispute.
Unreturned and unchallenged are semantically related. Sometimes you can use "Unreturned" instead an adjective "Unchallenged".
Nearby Word: unchallengeable
Mutual synonyms
Cite this Source
Unchallenged and Unreturned. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/unreturned/unchallenged
Unreturned & Unchallenged. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/unreturned/unchallenged>.
Unchallenged or Unreturned. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/unreturned/unchallenged.
Google Ngram Viewer shows how "unreturned" and "unchallenged" have occurred on timeline