General:
* Shallowness: This is a common antonym for "depth" in terms of physical or metaphorical depth.
* Superficiality: This emphasizes a lack of depth, especially in terms of thought or understanding.
Specific:
* Height: If you're talking about depth in terms of vertical distance, the antonym is height.
* Width: If you're talking about depth in terms of horizontal distance, the antonym is width.
* Surface: This is an antonym for depth in terms of being on the outside rather than the inside.
* Simplicity: If you're talking about depth of meaning or complexity, the antonym is simplicity.
Example:
* The ocean's depth is impressive, but the beach is shallow. (General antonym)
* He has a superficial understanding of the subject. (General antonym)
* The well's depth was measured against its height. (Specific antonym)
* The painting's depth of meaning is surprising, given its simplicity. (Specific antonym)