con·done / kənˈdōn/ • v. [tr.] accept and allow (behavior that is considered morally wrong or offensive) to continue: the college cannot condone behavior that involves illicit drugs. ∎ approve or sanction (something), esp. with reluctance: the practice is not officially condoned by any airline.DERIVATIVES: con·don·a·ble adj.con·do·na·tion / -ˈnāshən; -dō-/ n.con·don·er n.