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
Probable is an antonym for implausible.
Nearby Word: implausibly
Probable
Probable adjective - Worthy of being accepted as true or reasonable.
Usage example: the counselor could find no probable reason for the girl's bizarre actions
Both words in one sentence
- Trope Decay: In the past few years, the overuse of the term Alien Space Bats to mean "anything that seems implausible or not very probable to this board member" had lead to the erosion of its original meaning.
Source: Website / AlternateHistory.com
Cite this Source
Probable and Implausible. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/implausible/probable
Implausible & Probable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/implausible/probable>.
Probable or Implausible. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/implausible/probable.
Google Ngram Viewer shows how "implausible" and "probable" have occurred on timeline