a person who has committed an illegal act, especially a serious one 罪犯;犯人 these men are dangerous criminals. 这些人是危险的罪犯。
adjective
of or relating to illegal act or activity (与)犯罪(有关)的;犯法的 he is charged with conspiracy to commit criminal damage. 他因密谋策划破坏罪行受到指控。 ■(Law)of or relating to crime as opposed to civil matters (律)刑事的 a criminal court. 刑事法庭。 ■(informal)(of an action or situation) deplorable and shocking (非正式)(行为或情形)可叹的;令人震惊的 he may never fulfil his potential, and that would be a criminal waste. 他可能永远不能完全发挥他的潜力,那将是极大的浪费。