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
Improbable is a synonym for flimsy in likely topic. In some cases you can use "Improbable" instead an adjective "Flimsy", when it comes to topics like unconvincing.
Improbable
Improbable adjective - Not likely to be true or to occur.
Usage example: it seems improbable that the two writers never met since they traveled in the same social circles
Flimsy is a synonym for improbable in likely topic. You can use "Flimsy" instead an adjective "Improbable", if it concerns topics such as not likely.
Nearby Words: improbability, improbably
Mutual synonyms
Related pairs
Cite this Source
Improbable and Flimsy. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/flimsy/improbable
Flimsy & Improbable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/flimsy/improbable>.
Improbable or Flimsy. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/flimsy/improbable.
Google Ngram Viewer shows how "flimsy" and "improbable" have occurred on timeline