Stacks and resources have a state and a status as described in the lists that follow:
INIT – (Resources only) The resource has not been provisioned.
CREATE – The stack/resource is new.
UPDATE – The stack/resource is changed.
DELETE – The stack/resource is deleted.
ROLLBACK – A previously failed change is being reverted.
ADOPT – The stack/resource is adopted.
CHECK – The stack/resource health is checked.
IN-PROGRESS – The operation is in progress.
COMPLETE – The operation is compete.
FAILED – The operation failed.
So, if you create a new stack and something goes wrong, your stack would be CREATE FAILED. One or more resources of that stack may be in the following states: