deficient

deficient
[dɪˈfɪʃ(ə)nt]
adjective
  1. [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
  1. 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)
英语宝典
考试词汇表