minimax /ˈmɪn.ɪˌmæks/verb 2noun 1forms 3 verb2 •To find the optimum play, or decision, to achieve minimizing the maximum loss. •To invest heavily into one skill or ability, to the end of maximizing some beneficial effect. noun1 •A decision rule used for minimizing the maximum possible loss, or maximizing the minimum gain. formsminimaxed · minimaxing · minimaxes