By definition, the opposite of abstract art is called representational or figurative art. It refers to art that depicts recognizable subjects from the real world, such as people, landscapes, or objects. This can also include fictional or imagined objects, such as characters from mythology, fairy tales, or science fiction, since these are things the viewer can easily recognize through their form.
While abstract art focuses on emotion, movement, and color, representational art reflects a visible reality by emphasizing accuracy and detail. Both forms have deep artistic value, but where abstraction invites interpretation, representational art wants to depict the world through recognizable shapes.