👉 Tonnishness is a term used in the context of psychology and communication to describe a state or condition where one person's actions, thoughts, or feelings are so strongly influenced by another individual that they become indistinguishable from them. This can manifest as a person acting in such a way that their own thoughts, emotions, and behaviors are not immediately recognizable to others, making it difficult for the latter to separate themselves from the former. Tonnishness is often associated with situations or circumstances where