Definition: Unmatchableness is a concept in psychology that refers to the inability or difficulty someone has in forming or maintaining close relationships with others. It can be defined as a lack of compatibility, understanding, and trust between individuals. Unmatchableness can manifest itself in various ways, including differences in personality traits, communication styles, values, beliefs, and goals. In some cases, unmatchableness may also refer to the inability or difficulty in forming positive relationships with others due to past experiences or unresolved