subversive UK /səbˈvɜːsɪv/US /səbˈvɝsɪv/noun 2adjective 1forms 3 noun2 •A radical supporter of political or social revolution. •One who subverts, a saboteur, provocateur, or propagandist. adjective1 •Intending to subvert, overturn, undermine or debase. formssubversives · more subversive · most subversive