Questionable and Surefire

Opposite meaning words

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

Show all Definitions

Surefire is an antonym for questionable.

Surefire adjective - Not likely to fail.

Usage example: pizza seems like a surefire choice for a food that everyone at the party will be happy with

Show all Definitions

Questionable is an antonym for surefire in beyond dispute topic.

Cite this Source

Surefire and Questionable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/questionable/surefire

Questionable & Surefire. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/questionable/surefire>.

Surefire or Questionable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/questionable/surefire.

Google Ngram Viewer shows how "questionable" and "surefire" have occurred on timeline