Indecisive and Unchallengeable
Opposite meaning words
Indecisive
Indecisive adjective - Characterized by lack of decision and firmness.
Unchallengeable is an antonym for indecisive.
Nearby Words: indecision, indecisively
Unchallengeable
Unchallengeable adjective - Not capable of being challenged or proved wrong.
Usage example: the contention that there are certain unchallengeable rules governing proper grammar
Indecisive is an antonym for unchallengeable.
Nearby Word: unchallenged
Cite this Source
Unchallengeable and Indecisive. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/indecisive/unchallengeable
Indecisive & Unchallengeable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/indecisive/unchallengeable>.
Unchallengeable or Indecisive. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/indecisive/unchallengeable.
Google Ngram Viewer shows how "indecisive" and "unchallengeable" have occurred on timeline