Questioning
Questioning adjective - Inclined to doubt or question claims.
Usage example: a naturally questioning person, she demands rock-solid proof before she believes anything
Sure is an antonym for questioning.
Sure
Sure adjective - Having or showing a mind free from doubt.
Questioning is an antonym for sure.
Nearby Word: surely
Both words in one sentence
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Your character even questions this, but isn't really sure why he's questioning it until later.
Source: Playing the Player
Cite this Source
Sure and Questioning. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/questioning/sure
Questioning & Sure. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/questioning/sure>.
Sure or Questioning. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/questioning/sure.
Google Ngram Viewer shows how "questioning" and "sure" have occurred on timeline