sacrosanct
adjective/ˈsækrəʊsæŋkt/
/ˈsækrəʊsæŋkt/
[not usually before noun]- that is considered to be too important to change or question synonym sacred
- I'll work till late in the evening, but my weekends are sacrosanct.
Word Originlate 15th cent.: from Latin sacrosanctus, from sacro ‘by a sacred rite’ (ablative of sacrum) + sanctus ‘holy’.
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sacrosanct