1 dangerous; likely to be harmful 危险的；有害的: an unholy alliance between the medical profession and the pharmaceutical industry 医疗界与医药业的不当联盟

2 not respecting the laws of a religion 亵渎神明的；不守教规的 [OPP]holy 反义词为 holy

3 (only before a noun 只用于名词前) (informal 非正式) used to emphasize how bad sth is 过分的；无法容忍的: She wondered how she had got into this unholy mess. 她不知道自己如何弄得如此狼狈不堪。There was an unholy racket being made next door.隔壁传来了讨厌的喧闹声。