Improbable
Improbable adjective - Not likely to be true or to occur.
Unsubstantial and improbable are semantically related in likely topic. In some cases you can use "Unsubstantial" instead an adjective "Improbable", when it comes to topics like not likely.
Nearby Words: improbability, improbably
Unsubstantial
Unsubstantial adjective - Not composed of matter.
Improbable and unsubstantial are semantically related in likely topic. Sometimes you can use "Improbable" instead an adjective "Unsubstantial".
Nearby Word: unsubstantially
Mutual synonyms
Related pairs
- faint and improbable
- faint and unsubstantial
- fanciful and improbable
- fanciful and unsubstantial
- small and improbable
- small and unsubstantial
- weak and improbable
- weak and unsubstantial
- slight and improbable
- slight and unsubstantial
- implausible and improbable
- implausible and unsubstantial
- flimsy and improbable
- flimsy and unsubstantial
Cite this Source
Unsubstantial and Improbable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/improbable/unsubstantial
Improbable & Unsubstantial. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/improbable/unsubstantial>.
Unsubstantial or Improbable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/improbable/unsubstantial.
Google Ngram Viewer shows how "improbable" and "unsubstantial" have occurred on timeline