be carved in stone(redirected from are carved in stone)
be carved in stone
To be made permanent, typically of a plan or idea. We might get brunch next weekend, but nothing is carved in stone yet.
be carved/set in stone
if an arrangement, a plan, or a rule is set in stone, it is completely fixed so that it cannot be changed (usually negative) The rules aren't set in stone; they can be altered to suit changing circumstances. These are just a few ideas to be discussed - nothing is carved in stone.