deficient spacedeficient纠错英 [dɪ'fɪʃ(ə)nt] 美 [dɪ'fɪʃnt] adj. 不足的;有缺陷的;不充分的柯林斯英汉双解大辞典deficient /dɪˈfɪʃənt/ 1.形容词 If someone or something is deficient ina particular thing, they do not have the full amount of it that they need in order to function normally or work properly. 缺乏的; 不足的例:...a diet deficient in vitamin B.…缺少维生素B的饮食。