If an agreement, policy, or rule is set in stone, it is completely decided and cannot be changed. The exact terms of the scheme have yet to be set in stone. Note: Other verbs such as carved or cast can be used instead of set. ...

What does set in stone mean?

Definitions of set in stone. adjective. no longer changeable. “the agreement is not yet set in stone” synonyms: carved in stone unchangeable.

Is the saying set in stone or set and stone?

Carved in stone, set in stone and written in stone describe something that can not be changed, something permanent and immutable, something that is absolute. As with most idioms, the phrases carved in stone, set in stone and written in stone have their origin in a literal meaning.