Improbable and Ostensible

Improbable

Improbable adjective - Not likely to be true or to occur.

Ostensible is an antonym for improbable in not likely topic.

Nearby Words: improbability, improbably

Ostensible

Ostensible adjective - Appearing to be true on the basis of evidence that may or may not be confirmed.
Usage example: the ostensible reason for the meeting turned out to be a trick to get him to the surprise party

Improbable is an antonym for ostensible in alleged topic.

Nearby Word: ostensibly
Cite this Source
Ostensible and Improbable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/improbable/ostensible
Improbable & Ostensible. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/improbable/ostensible>.
Ostensible or Improbable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/improbable/ostensible.
Google Ngram Viewer shows how "improbable" and "ostensible" have occurred on timeline