This question is based on General Literary Principles.
A character who remains unchanged in a work of art is called
Answer Details
A character who remains unchanged in a work of art is called a "flat character". Flat characters are typically minor characters in a story who do not undergo significant growth or change throughout the course of the narrative. They are often used to provide contrast to the more complex, dynamic "round" characters, who do undergo changes and developments. Flat characters tend to be defined by a single trait or characteristic, and their behavior is predictable and consistent. They may serve a variety of functions within a story, such as providing comic relief, advancing the plot, or highlighting the traits of the more fully developed characters.