Synonyms and Antonyms of speculate

  1. to form an opinion from little or no evidence <I speculate that someone has been using this cabin as a trysting place> Synonyms assume, conjecture, daresay, imagine, presume, guess, suppose, surmise, suspect, suspicion [chiefly dialect]Related Words conclude, deduce, gather, infer; hypothecate, hypothesize, theorize; believe, conceive, expect, judge, reckon [chiefly dialect], take, thinkNear Antonyms demonstrate, document, establish, prove, substantiate, validate; ascertain, determine, find out, learn

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