noun
theory, guess
Synonyms: belief, brainwork, cerebration, cogitation, conjecture, consideration, contemplation, deliberation, excogitation, guesstimate, guesswork, hunch, hypothesis, meditation, opinion, reflection, review, shot, shot in the dark, sneaking suspicion, stab, stab in the dark, studying, supposition, surmise, thinking, thought, weighing
Antonyms: fact, information, reality, truth
noun
risk, gamble
Synonyms: backing, flier, flutter, gambling, hazard, hunch, piece, plunge, right money, risky business, risky venture, shot, shot in the dark, smart money, spec, speculative enterprise, stab, venture, wager
Antonyms: abstention