What is the definition of imitationalism?

"Imitationalism" is not a commonly used term in philosophy or art theory. It's possible that you're thinking of a different concept or that the term is being used in a very specific context.

Here are some possible interpretations and related concepts:

* Mimicry: This is a more common term that describes the act of imitating or copying something. In art, it could refer to realistic representation of objects or scenes, like in photorealistic painting.

* Mimesis: This is a term used in philosophy and art theory that refers to the idea of imitation, but with a broader meaning. It encompasses the idea of art as a representation of reality, but also explores the relationship between art and reality, and how art can reveal truths about the world.

* Representation: This is a general term that refers to the way in which something stands in for something else. In art, it can refer to the way that images, symbols, and other artistic elements represent real-world objects, ideas, or emotions.

* Realism: In art, this refers to a style that aims to represent reality accurately. This could involve depicting objects and scenes in a realistic way, but also exploring the social and political realities of the time.

If you can provide more context about where you encountered the term "imitationism," I may be able to give you a more precise answer.