.常见的前缀1.表示否定意义的前缀1)纯否定前缀a-, an-, asymmetry（不对称）anhydrous（无水的）dis- dishonest, dislikein-, ig-, il, im, ir, incapable, inability, ignoble, impossible, immoral, illegal, irregularne-, n-, none, neither, nevernon-, noesenseneg-, neglectun- unable, unemployment2)表示错误的意义male-, mal-, malfunction, maladjustment(失调)mis-, mistake, misleadpseudo-, pseudonym(假名), pseudoscience3)表示反动作的意思de-, defend, demodulation(解调)dis-, disarm, disconnectun-, unload, unco
