Certain
Certain adjective - Having or showing a mind free from doubt.
Usage example: I'm certain that they'll arrive on time
Dubious
Dubious adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: any letter bearing the signature of Geronimo would be of dubious authenticity, to say the least
Both words in one sentence
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The film has a dubious reputation for certain reason and changes made within the production.Our main story still mostly stays the same.
Source: Film / Rawhead Rex -
Corrupt Corporate Executive: Donovan Miller and, to a certain extent, Church of Us representative Gordon Cordray represent corporate entities with dubious agendas.
Source: Video Game / Knee Deep - The only exceptions are during a certain conversation with Karl (which is dubious in its sincerity) and that one moment in the library where he fainted (which is meant to be Nightmare Fuel).
Source: Analysis / Monster
Cite this Source
Dubious and Certain. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/certain/dubious
Certain & Dubious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/certain/dubious>.
Dubious or Certain. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/certain/dubious.
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