Certain
Certain adjective - Impossible to avoid or evade.
Usage example: as he got older, the athlete began to feel the certain effects of the aging process on his body
Improbable is an antonym for certain.
Improbable
Both words in one sentence
- Improbable Weapon User: Toward the end of the game, the eyes must be used to destroy certain enemies.
Source: Video Game / Au Sable -
Improbable Power Discrepancy: A certain challenge mission increases the levels of enemies by 60.
-
Improbable Taxonomy Skills: Ellie, a paleobotanist, recognizes certain (formerly) extinct plants as poisonous.
Source: Film / Jurassic Park
Cite this Source
Improbable and Certain. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/certain/improbable
Certain & Improbable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/certain/improbable>.
Improbable or Certain. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/certain/improbable.
Google Ngram Viewer shows how "certain" and "improbable" have occurred on timeline