KEY: Suppose.
SYN: Assume, presume, believe, divine, deem, fancy, think, regard, conceive, imagine, imply, presuppose, conjecture, guess, conclude, judge, consider.
ANT: Prove, demonstrate, substantiate, realize, disbelieve, negative, deny.
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KEY: Supposition.
SYN: Conjecture, surmise, assumption, hypothesis, speculation, theory, guess, presumption, [See ADHERENT].
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KEY: Supposititious.
SYN: Fictitious, ascititious, adventitious, spurious, counterfeit, fancied, imaginary, sham, false.
ANT: true, genuine, authentic, veritable, actual, real.