Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Suppositious and questionable are semantically related. In some cases you can use "Suppositious" instead an adjective "Questionable".
Suppositious
Suppositious adjective - Based primarily on surmise rather than adequate evidence.
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Synonyms for Suppositious
Questionable and suppositious are semantically related. Sometimes you can use "Questionable" instead an adjective "Suppositious".
Mutual synonyms
Cite this Source
Suppositious and Questionable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/questionable/suppositious
Questionable & Suppositious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/questionable/suppositious>.
Suppositious or Questionable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/questionable/suppositious.
Google Ngram Viewer shows how "questionable" and "suppositious" have occurred on timeline