For purposes of no-fault divorce, states use various terms to describe the basic concept of marital breakdown, including irreconcilable differences, incompatibility, insupportability, and irretrievable breakdown. The realization that existing divorce laws no longer comported with the modern marriage experience and marital life led most states to recognize marital disharmony as a basis for no-fault divorce. Statutes usually provide some definition for the concept, and courts often have discretion to apply the standard in individual divorce proceedings.