Interindividual, a term used to describe interactions or relationships between two or more individuals, can be substituted with various synonyms. One of the most common alternatives is interpersonal, which implies communication or interaction between people. Other synonyms include among others mutual, reciprocal, communal, or shared, which emphasize a sense of commonality or mutual relationship between individuals. Additionally, terms such as collaborative, joint, or collective imply a group effort among individuals. Finally, the word interdependent is commonly used to describe the reliance of individuals on one another within a system or network, emphasizing the reciprocal and mutually dependent nature of relationships between individuals.