1. 表示否定意義的前綴
    1) 純否定前綴
    a-, an-, asymmetry(不對稱)anhydrous(無水的)
    dis- dishonest, dislike
    in-, ig-, il, im, ir, incapable, inability, ignoble, impossible, immoral, illegal, irregular
    ne-, n-, none, neither, never
    non-, noesense
    neg-, neglect請訪問考試大網站http://www.examda.com/
    un- unable, unemployment
    2) 表示錯誤的意義
    male-, mal-, malfunction, maladjustment(失調)
    mis-, mistake, mislead
    pseudo-, pseudonym(假名), pseudoscience
    3)表示反動作的意思
    de-, defend, demodulation(解調)
    dis-, disarm, disconnect
    un-, unload, uncover
    4)表示相反，相互對立意思
    anti-, ant- antiknock( 防震), antiforeign,(排外的)
    contra-, contre-, contro-, contradiction, controflow(逆流)
    counter-, counterreaction, counterbalance
    ob-, oc-, of-, op-, object, oppose, occupy
    with-, withdraw, withstand