[predic.]not having enough of a specified quality or ingredient 不足的,缺乏的 this diet is deficient in vitamin B. 这个食谱中缺少维生素B 。 ■insufficient or inadequate 不充分的,不适当的 the documentary evidence is deficient. 文献证据不足。 ■(亦作 mentally deficient)(offensive)having a mental handicap (冒犯)有智力障碍的,傻的
派生 语源
late 16th cent. (originally in the theological phrase deficient cause, denoting a failure or deficiency that has a particular consequence): from Latin deficient- 'failing', from the verb deficere (see defect)