guess

Synonyms: assumption ballpark figure conclusion conjecture deduction divination estimate fancy feeling guesstimate guesswork hunch hypothesis induction inference judgment notion opinion postulate postulation prediction presumption presupposition reckoning shot shot in the dark sneaking suspicion stab supposal supposition surmisal surmise suspicion theory thesis view

Antonyms: calculation measurement

Synonyms: believe calculate chance conjecture dare say deduce deem divine estimate fancy fathom go out on a limb guesstimate happen upon hazard hypothesize infer judge jump to a conclusion lump it opine penetrate pick postulate predicate predict presume pretend reason reckon select size up solve speculate suggest suppose surmise survey suspect take a shot at take a stab at theorize think think likely venture work out

Antonyms: calculate measure