that is considered to be too important to change or question神圣不容更改（或置疑）的 synonym sacred- I'll work till late in the evening, but my weekends are sacrosanct.晚上加班我愿意，但周末休息没商量。🔊🔊
Word Originlate 15th cent.: from Latin sacrosanctus, from sacro ‘by a sacred rite’ (ablative of sacrum) + sanctus ‘holy’.