argumentative(of or relating to argumentation; specifically, presenting a logical argument or line of reasoning, see also: argumentive) adjective [UK: ˌɑː.ɡju.ˈmen.tə.tɪv] [US: ˌɑːr.ɡjə.ˈmen.tə.tɪv]
argumentive(being or presenting an argument or line of reasoning) adjective