unmaterialized
Unmaterialized is an adjective used to describe something that has not yet taken physical form or has not become a concrete reality. It implies a state of potentiality, existing in thought, concept, or plan but lacking tangible substance. This term is often applied in various contexts.
In computer science, a value might be unmaterialized if it has been defined but not yet computed
In a broader sense, an idea or a plan can be considered unmaterialized until it is acted