not be set/carved in stone
UK US not be carved/etched in stoneto be able to be changed:
These are just a few ideas - nothing is set in stone yet.
Thesaurus: synonyms and related words
Uncertainty
- be neither fish nor fowl idiom
- circumstantial
- conflicted
- debatable
- definite maybe
- dispute
- joker
- joker in the pack idiom
- kind
- kind of idiom
- kinda
- knife edge
- razor
- shade
- there's no knowing idiom
- touch-and-go
- uncertain
- uncertainty
- unconfirmed
- vague
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