insidious

详细解释:a. 隐伏的, 阴险的, 狡猾的
【医】 隐袭的

词型变化：

名词:insidiousness副词:insidiously

英语解释：

形容词 insidious:

beguiling but harmfulintended to entrapworking or spreading in a hidden and usually injurious way同义词：pernicious, subtle