diffident /'difidant; 'difadant/ adj not having, not showing, much belief in one's own abilities; lacking in self-confidence: 對(duì)自己的能力沒(méi)有信心的; 缺乏自信心的： to be ~ about doing sth; 對(duì)于做某事缺乏自信心; to speak in a ~ manner. 說(shuō)話沒(méi)有自舍心的后子。 — ly adv diffidence /-dans; -dans/ n [U] being shyness. 無(wú)自信心; 羞怯。