Non-adherent is a term that can be used to describe someone who does not follow a particular philosophy or doctrine. Synonyms for non-adherent include disbeliever, dissenter, agnostic, heretic, skeptic and nonconformist. Each of these terms describes a person who does not follow the norm and may have different beliefs or ideas from those around them. A non-adherent can be someone who is independent, challenging, and may have a unique perspective. While some people may view non-adherents as difficult or argumentative, others may appreciate their viewpoints and value their contributions to discussions and debates. Regardless of how they are perceived, non-adherents bring diversity and individuality to any situation.