paramilitary UK /ˌpæɹəˈmɪlɪˌtɹi/US /ˌpæɹəˈmɪlɪˌtɛɹi/noun 2adjective 1forms 1 noun2 •A group of civilians trained and organized in a military fashion, but which do not represent the formal forces of a sovereign power. •A member of a paramilitary group. adjective1 •Relating to a paramilitary. formsparamilitaries