etched in stone イディオム
Etched in stone
Something, especially rules and customs, that cannot be changed at all is said to be etched in stone.
etched in stone
Permanently anchored or durably established; not accountable to any about-face or alteration. Often acclimated in the negative. The accord isn't yet categorical in stone, but we're assured it will go advanced as hoped.Learn more: etch, stone
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