what does superficial mean

The word "superficial" means something that is concerned only with what is obvious or apparent, not thorough or complete. It often refers to something that affects only the outer part or surface and is not deep or serious. Superficial can also describe a quality or characteristic that is outward and not genuine or deep, and it can be used in a disapproving way to describe someone or something that lacks depth or importance, such as superficial knowledge or superficial relationships.