pre·dict·a·ble / priˈdiktəbəl/ • adj. able to be predicted: the market is volatile and never predictable. ∎ chiefly derog. behaving or occurring in a way that is expected: the characters were very stereotyped and extremely predictable.DERIVATIVES: pre·dict·a·bil·i·ty / -ˌdiktəˈbilətē/ n.pre·dict·a·bly / -blē/ adv. predictably, Margaret found an excuse to interrupt him | a predictably hostile response.