sacrilegious
adjective
UK/ˌsæk.rɪˈlɪdʒ.əs/
US/ˌsæk.rəˈlɪdʒ.əs/
Definitions of sacrilegious adjective
disrespectful or irreverent towards what is considered sacred or highly valued.
The way the artwork was handled was considered sacrilegious.
His mockery of tradition was seen as sacrilegious.
Speaking loudly in the church was considered a sacrilegious act.