I would call it "no change".
When a gas changes directly to a solid it is known as deposition.
When a gas changes directly to a solid it is known as deposition.
Freezing.
Freezing.
frozen
sublimation
Sublimination
Sublimation
The name for solid water is ice. It changes to a liquid when it melts.
Sublimation is the unique property in which a substance can go from a solid to a gas without becoming a liquid. Sublimation is a phase transition.
This is the melting point.
When water changes into a solid it becomes a solid!