👉 Impassiveness is a concept in psychology that describes a person or an animal's behavior of not being responsive to stimuli. It can be seen as a lack of interest, indifference, or non-response, often associated with feelings of boredom, frustration, and disinterest. In the context of animals, impassiveness might refer to a state where an animal is not actively responding to stimuli such as food, water, or other cues, but rather remains motionless. It can also be associated with the lack