negation /m'geijn; m'gefan/ n [U] 1 (opp of affirmation) (為 affirmation 之相反字) act of denying: 否定; 否認(rèn): Shaking the head is a sign of 搖頭是吉認(rèn)的表示。 2 absence of any positive or real quality or meaning: 實(shí)質(zhì)或真義炮不存在:處無: The life of an evil man is a moral 惡人的生命毫怨道德價(jià)值。