1. 亵渎神圣的;大不敬的;无礼的
If someone's behaviour or actions are sacrilegious, they show great disrespect towards something holy or towards something that people think should be respected.

1. grossly irreverent toward what is held to be sacred

e.g. blasphemous rites of a witches' Sabbath
profane utterances against the Church
it is sacrilegious to enter with shoes on

Synonym: blasphemousprofane