counterargument Syllabification: (coun·ter·ar·gu·ment)Pronunciation: /ˈkountərˈärgyəmənt/Definition of counterargument noun an argument or set of reasons put forward to oppose an idea or theory developed in another argument:the obvious counterargument to that dire prediction is that the recession has depressed earningscounterargument in other Oxford dictionaries Definition of counterargument in the British & World English dictionary