Definition: The term "unmodeled" is a colloquial expression used to describe something that is not being modeled or accounted for. It can be used in various contexts, such as science, engineering, finance, and other fields where there is an absence of precise data or information about certain aspects of the system. For example, if you are describing a situation where you have no specific data on a particular variable, then "unmodeled" could refer to something that does not fit into any known