(New American Roget's College Thesaurus)
1. supposition, assumption, postulation, condition (see qualification); presupposition, hypothesis, postulate, theory, data; proposition, position; thesis, theorem; proposal; conceit; conjecture, cast; guess[work], rough guess, shot [in the dark]; surmise, suspicion, inkling, notion, suggestion, association of ideas; presumption (see belief); divination, speculation. Informal, hunch. See reasoning.
2. theorist, theoretician, hypothesist, speculator, conjecturer.
1. suppose, conjecture, gather, surmise, suspect, guess, divine; theorize; presume, presuppose; assume, beg the question, fancy, take it; give a guess, speculate, believe, daresay, take it into one's head, take for granted.
2. put forth, propound, propose; start, put or give a case, move, make a motion; hazard a suggestion or conjecture; put forward a suggestion; submit; allude to, suggest, hint, put it into one's head.
Adjectives — supposing, supposed, given, postulatory; assumed, suppositive, supposititious; speculative, conjectural, hypothetical, theoretical, supposable, presumptive, putative, academic, gratuitous; impractical; suggestive.
Adverbs — supposedly, theoretically, on paper, seemingly, if, if so be; on the supposition of, in case of, in the event of; quasi, as if, provided; perhaps; for all one knows; for the sake of argument.
Quotations — How seldom is it that theories stand the wear and tear of practice! (Anthony Trollope), The great tragedy of Science — the slaying of a beautiful hypothesis by an ugly fact (Aldous Huxley), All theory, dear friend, is grey, but the golden tree of actual life springs ever green (Goethe).
Antonyms, see knowledge, certainty.
(Roget's IV) n.
1. [A guess]
Syn. surmise, notion, speculation; see guess , guessing .
2. [A theory]
Syn. idea, thesis, likelihood; see hypothesis , opinion 1 .
(Roget's 3 Superthesaurus) n.
assumption, hypothesis, presumption, thought, guess, suspicion, theory, belief, conjecture, postulate.
(Roget's Thesaurus II) noun 1. A judgment, estimate, or opinion arrived at by guessing: conjecture, guess, guesswork, speculation, surmise. See OPINION. 2. Something taken to be true without proof: assumption, postulate, postulation, premise, presupposition, theory, thesis. See REASON.

English dictionary for students. 2013.


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  • supposition — [ sypozisjɔ̃ ] n. f. • 1370; « soumission » dr. 1291; lat. suppositio, de supponere → supposer I ♦ Action de supposer; ce qu on suppose (I). 1 ♦ Littér. Hypothèse de l esprit. « Un point géométrique est une supposition, une abstraction de l… …   Encyclopédie Universelle

  • supposition — Supposition. s. f. Proposition que l on suppose comme vraye ou comme possible, afin d en tirer ensuite quelque induction. Dans la supposition que vous faites, il faudroit que. il ne faut point faire de supposition de choses qui soient… …   Dictionnaire de l'Académie française

  • Supposition — Sup po*si tion, n. [F. supposition, L. suppositio a placing under, a substitution, fr. supponere, suppositium, to put under, to substitute. The word has the meaning corresponding to suppose. See {Sub }, and {Position}.] 1. The act of supposing,… …   The Collaborative International Dictionary of English

  • Suppositĭon — (v. lat.), 1) Unterschiebung; 2) Voraussetzung, Vermuthung, Annahme. Daher Supposititĭus, untergeschoben. Supposititĭa, untergeschobene Dinge. Supposititĭi (nämlich gladiatores), solche Fechter, welche an die Stelle der Besiegten, der Ermüdeten… …   Pierer's Universal-Lexikon

  • Supposition — (lat.), Annahme, Voraussetzung; Unterschiebung, z. B. eines Testaments, eines Kindes etc …   Meyers Großes Konversations-Lexikon

  • Supposition — (lat.), Unterschiebung; Voraussetzung, Annahme …   Kleines Konversations-Lexikon

  • supposition — I noun assumption, belief, conception, coniectura, conjecture, guess, hypothesis, likelihood, likeliness, opinio, opinion, position, postulate, premise, presumption, probability, speculation, supposal, surmise, suspicion, theorem, theory, thesis… …   Law dictionary

  • supposition — early 15c., a term in logic, from L.L. suppositionem (nom. suppositio) assumption, hypothesis, noun of action from pp. stem of supponere (see SUPPOSE (Cf. suppose)); influenced by Gk. hypothesis …   Etymology dictionary

  • supposition — [n] guess, belief apriorism, assumption, condition, conjecture, doubt, guessing, guesstimate*, guesswork, hunch, hypothesis, idea, likelihood, notion, opinion, posit, postulate, postulation, premise, presumption, presupposition, rough guess*,… …   New thesaurus

  • supposition — ► NOUN ▪ an assumption or hypothesis …   English terms dictionary

  • supposition — [sə pō′zəlsup΄ə zish′ən] n. [OFr < L suppositio < suppositus, pp. of supponere: see SUPPOSE] 1. the act of supposing 2. something supposed; assumption; hypothesis: Also supposal [sə pō′zəl] suppositional adj. suppositionally adv …   English World dictionary

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