Decisive
Decisive adjective - Fully committed to achieving a goal.
Usage example: only a team with a decisive attitude is going to win a state championship
Sure
Sure adjective - Having or showing a mind free from doubt.
Usage example: are you absolutely sure that she said she was coming today?
Decisive is a synonym for sure in self-confident topic. Sometimes you can use "Decisive" instead an adjective "Sure".
Nearby Word: surely
Mutual synonyms
Both words in one sentence
- After taking a mortal wound on the eve of a decisive battle against invading Moors at the city of Valencia, he makes his wife swear that she will make sure he rides into battle the next morning no matter what.
Source: El Cid Ploy -
No, Except Yes: In "The Trial of Leslie Knope", Leslie tells Ron to silence Chris's decisive witness, then corrects herself—"Don't silence him, just make sure he can't talk." "Citizen Knope":Leslie: Oh, I'm not gonna do my job.
Source: Series / Parks and Recreation -
Sure, Keyblades beyond the one you'll start out with will have vastly better stats, but it can occasionally make cutscenes look unintentionally narmish when Sora has something like Decisive Pumpkin◊ equipped.
Source: Franchise / Kingdom Hearts
Cite this Source
Sure and Decisive. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/decisive/sure
Decisive & Sure. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/decisive/sure>.
Sure or Decisive. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/decisive/sure.
Google Ngram Viewer shows how "decisive" and "sure" have occurred on timeline