If someone's behaviour or actions are sacrilegious, they show great disrespect towards something holy or towards something that people think should be respected.
例句
A number of churches were sacked and sacrilegious acts committed.很多教堂都被洗劫一空，而且作出了諸多瀆神之舉。
英漢詞典釋義
adj.
犯瀆圣罪的;該受天譴的
We suggested "A.M."; and after some hesitation, for my friend thought it perhaps sacrilegious, the slogan "A.M.! Amen!"我們提議叫“A.M.”，因為我朋友害怕這樣會瀆神，所以一番猶豫之后，才給出廣告語：“A.M.！阿門！”
英英詞典釋義
Adjective
1. grossly irreverent toward what is held to be sacred;
"blasphemous rites of a witches' Sabbath""profane utterances against the Church""it is sacrilegious to enter with shoes on"