guesstimate

to make an approximate or tentative judgment regarding I'm going to guesstimate that this ring is worth $200 or so Synonyms appraise, assess, evaluate, estimate, rate, set, valuate, valueRelated Words adjudge, deem, judge; ascertain, determine, discover, learn; price, prize; decide, settle; analyze, assay, survey, test; reappraise, reassess, reevaluate, rejudge, revalue; transvaluate, transvalue; misesteem, misjudge, misprize, underestimate, undervalue