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
Questionable is a synonym for improbable in unlikely topic. In some cases you can use "Questionable" instead an adjective "Improbable", when it comes to topics like likely, doubtful, not likely. popular alternative
Nearby Words: improbability, improbably
Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: the runner's unexpected first-place finish is questionable, so a drug test has been ordered
Improbable is a synonym for questionable in likely topic. You can use "Improbable" instead an adjective "Questionable", if it concerns topics such as unlikely, unverified. popular alternative
Mutual synonyms
Related pairs
- suspect and improbable
- suspect and questionable
- dubious and improbable
- dubious and questionable
- doubtful and improbable
- doubtful and questionable
- implausible and improbable
- implausible and questionable
- shady and improbable
- shady and questionable
- flimsy and improbable
- flimsy and questionable
- suspicious and improbable
- suspicious and questionable
Both words in one sentence
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Improbable Age: Damian makes some rather questionable boasts, such as hacking NORAD at the age of six or mountain climbing at four.
Cite this Source
Questionable and Improbable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/improbable/questionable
Improbable & Questionable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/improbable/questionable>.
Questionable or Improbable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/improbable/questionable.
Google Ngram Viewer shows how "improbable" and "questionable" have occurred on timeline