Controversial and Unchallengeable

Opposite meaning words

Controversial adjective - Marked by or capable of arousing controversy.

Usage example: a controversial decision on affirmative action

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Unchallengeable is an antonym for controversial.

Unchallengeable adjective - Not capable of being challenged or proved wrong.

Usage example: the contention that there are certain unchallengeable rules governing proper grammar

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Controversial is an antonym for unchallengeable.

Nearby Word: unchallenged

Cite this Source

Unchallengeable and Controversial. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/controversial/unchallengeable

Controversial & Unchallengeable. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/controversial/unchallengeable>.

Unchallengeable or Controversial. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/controversial/unchallengeable.

Google Ngram Viewer shows how "controversial" and "unchallengeable" have occurred on timeline