Definition of supposition in US English:

supposition

noun

  • An uncertain belief.

    ‘they were working on the supposition that his death was murder’
    ‘their outrage was based on supposition and hearsay’
    • ‘Extract facts, suppositions and nuggets of information from technical explanations.’
    • ‘As mentioned above, and as we discuss in Part IV, these suppositions are in some tension with existing evidence.’
    • ‘These are not mere suppositions or wishful thinkings.’
    • ‘There then follows a bunch of suppositions about possible causes.’
    • ‘Hypotheses are suppositions about causes which may be entertained by a scientist in cases where it is not practical to induce the separate laws.’
    • ‘Hypotheses, suppositions tentatively accepted, help the therapist to focus on what seems most relevant at that moment.’
    • ‘Ultimately we get to the facts as opposed to the suppositions.’
    • ‘Let us remember that so many of their assertions are mere suppositions and theories which cannot be proved, and which may very well be disproved, as so many have been disproved during the past hundred years.’
    • ‘Such suppositions often invite skepticism and scorn, especially among Westerners.’
    • ‘Given the electoral history of Britain since 1979 these suppositions were reasonable enough.’
    • ‘There is no direct evidence, and what follows is too contingent on a series of hypothetical suppositions to be convincing.’
    • ‘Judging by the sound of that question, I can make two suppositions.’
    • ‘Such a circular argument, which relies on its own suppositions as proof, can be used to justify anything.’
    • ‘Strong suppositions began at this point to emerge.’
    • ‘In most cases, however, this kind of mutual informing included only assumptions and suppositions.’
    • ‘There is no reason to assume you will have the same beliefs in these two cases, under these suppositions of differing strengths.’
    • ‘In fact, the article includes numerous suppositions and makes inferences that miss the mark because of inaccuracies, misunderstood information, and a lack of research.’
    • ‘All too often in this book, the author is forced to fall back on her own suppositions and general guesswork.’
    • ‘I hope he writes a more generalized theoretical piece that articulates his disagreement with colleagues on this issue - the issue of proving one's suppositions and ideas.’
    • ‘Now, there are what I have said are suppositions.’
    belief, surmise, idea, notion, suspicion, conjecture, speculation, view, inference, theory, thesis, hypothesis, postulation, guess, guesswork, feeling, hunch, assumption, presumption
    View synonyms

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).

Pronunciation

supposition

/ˌsəpəˈzɪʃ(ə)n//ˌsəpəˈziSH(ə)n/