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Dictionary Language resources

supposition

Pronunciation: /ˌsʌpəˈzɪʃ(ə)n/

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Definition of supposition

noun

a belief held without proof or certain knowledge; an assumption or hypothesis:they were working on the supposition that his death was murder [mass noun]:their outrage was based on supposition and hearsay

Derivatives

suppositional

Origin:

late Middle English (as a term in scholastic logic): from Old French, or from late Latin suppositio(n-) (translating Greek hupothesis 'hypothesis'), from the verb supponere (see suppose)