Impossible and Implausible

Impossible

Impossible adjective - Incapable of being solved or accomplished.
Usage example: fitting everything in my backpack seemed an impossible task

Implausible is a synonym for impossible in unlikely topic. In some cases you can use "Implausible" instead an adjective "Impossible", when it comes to topics like unimaginable, unachievable, unattainable. popular alternative

Nearby Words: impossibility, impossibly

Implausible

Implausible adjective - Too extraordinary or improbable to believe.
Usage example: the terrorist attacks generated a whole passel of implausible conspiracy theories that dishonor the memory of those who perished

Impossible is a synonym for implausible in unlikely topic. You can use "Impossible" instead an adjective "Implausible", if it concerns topics such as unimaginable, not likely. popular alternative

Nearby Word: implausibly
Cite this Source
Implausible and Impossible. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/impossible/implausible
Impossible & Implausible. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/impossible/implausible>.
Implausible or Impossible. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/impossible/implausible.
Google Ngram Viewer shows how "impossible" and "implausible" have occurred on timeline