The term 'confident belief' can be represented by the 8-letter word 'CREDENCE'. CREDENCE is defined as a belief in or acceptance of something as true, especially on the basis of evidence or authority. It is often used to describe a trust in someone or something, such as a person's faith in a religion or a person's trust in a political leader. CREDENCE is also used to describe the level of trust that people have in a particular idea or concept.