vicious circle Syllabification: (vi·cious cir·cle) (also vicious cycle)Translate vicious circle | into French | into German | into Italian | into Spanish Definition of vicious circle noun 1a sequence of reciprocal cause and effect in which two or more elements intensify and aggravate each other, leading inexorably to a worsening of the situation. 2 Logic a definition or statement that begs the question. vicious circle in other Oxford dictionaries Definition of vicious circle in the British & World English dictionary