Flimsy and Implausible

Flimsy

Flimsy adjective - Not likely to be true or to occur.
Usage example: “The check is in the mail” is a pretty flimsy and tired excuse

Implausible is a synonym for flimsy in likely topic. In some cases you can use "Implausible" instead an adjective "Flimsy", when it comes to topics like weak, unconvincing.

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

Flimsy is a synonym for implausible in likely topic. You can use "Flimsy" instead an adjective "Implausible", if it concerns topics such as improbable, not likely.

Nearby Word: implausibly

Both words in one sentence

  • Cloudcuckoolander: Several episodes in which the topic deals with accusations of infidelity have featured some unintentional lighter moments, due to guests who are quirky, to say the least, and particularly those whose excuses of denial for cheating are incredibly flimsy and implausible.
  • Skepticism Failure In settings with a masquerade ordinary people are often depicted as being so utterly skeptical that clear evidence of paranormal goings on is dismissed with a flimsy and wildly implausible 'rational' explanation, which itself is a form of skepticism failure.
Cite this Source
Implausible and Flimsy. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/flimsy/implausible
Flimsy & Implausible. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/flimsy/implausible>.
Implausible or Flimsy. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/flimsy/implausible.
Google Ngram Viewer shows how "flimsy" and "implausible" have occurred on timeline