Certain and Open

Certain

Certain adjective - Known but not named.

Open is an antonym for certain.

Nearby Words: certainty, certainly

Open

Open adjective - Not yet settled or decided.
Usage example: that issue will have to remain open until the supervisor can decide

Certain is an antonym for open in topics: clear, honest, accessible, undecided, unfastened.

Nearby Words: opening, openness, opened, opener

Both words in one sentence

  • NPC Scheduling: In Kandume, certain areas of the world only open up during certain times of day.
  • Western Animation / Hoodwinked Not only is it used to open the film itself, but also to open each character's story, by flipping backwards to a map and zooming in on a certain location.
  • Interchangeable Antimatter Keys Certain "keys" don't actually open a door but instead act as Plot Coupons that unlock harder difficulty modes.
Cite this Source
Open and Certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/certain/open
Certain & Open. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/certain/open>.
Open or Certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/certain/open.
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