Intentional communication is conscious, deliberate communication.Here the sender 
becomes a receiver, and the receiver becomes a sender, because of the dynamic 
communication process where the feedback is shared.Dyadic (Interpersonal) Communication
Dyadic communication is the interaction and exchange of information between two 
people.In this 
communication process, everyone becomes a sender as well as a receiver through 
sharing information and giving feedback to others.But in this communication, there are no mutual 
feedbacks (because of the large distance) between a sender and a receiver, and it's 
only focused on the sender.Unintentional communication
We can be silent, but at the same time we unconsciously give information through 
body language, appearance, dress, or behavior.Intrapersonal / dyadic / small group / public / mass communication
Intrapersonal Communication
Intrapersonal communication is communication that happens inside a person.Example: A person can communicate himself through pain, thinking, feelings and 
emotion, etc.This can be verbal and/or nonverbal communication.