英语单词常见前缀后缀一. 常见前缀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- neither, never, none,non- 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-