be set in concrete

if an arrangement, a plan or a rule is set in concrete, it is completely fixed so that it cannot be changed (usually negative) We've drawn up some rough guidelines - they're by no means set in concrete.

Common Names:

Name	Pronounced	Usage
Gwenith	-	Welsh
Devraj	-	Indian, Hindi
Haytham	-	Arabic
Cynesige	-	Anglo-Saxon
Anwer	-	Arabic
Dionysius	-	Ancient Greek (Latinized), Biblical