decontrol Syllabification: (de·con·trol)Pronunciation: /ˌdēkənˈtrōl/Definition of decontrol verb (decontrols, decontrolling, decontrolled) [with object] release (a commodity, market, etc.) from controls or restrictions:whether gas prices should be totally decontrolled noun the action of decontrolling something. decontrol in other Oxford dictionaries Definition of decontrol in the British & World English dictionary