Implausible and Unreasonable

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

Unreasonable and implausible are semantically related. in improbable topic. In some cases you can use "Unreasonable" instead an adjective "Implausible", when it comes to topics like not likely.

Nearby Word: implausibly

Unreasonable

Unreasonable adjective - Having no basis in reason or fact.
Usage example: an unreasonable assumption

Implausible and unreasonable are semantically related. Sometimes you can use "Implausible" instead an adjective "Unreasonable".

Cite this Source
Unreasonable and Implausible. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/implausible/unreasonable
Implausible & Unreasonable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/implausible/unreasonable>.
Unreasonable or Implausible. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/implausible/unreasonable.
Google Ngram Viewer shows how "implausible" and "unreasonable" have occurred on timeline