Non observance means failing to comply or adhere to a rule, law, or custom. Its antonyms include compliance, obedience, adherence, conformity, and observance. Compliance refers to following regulations or policies voluntarily or as per legal requirements. Obedience suggests following rules or commands from a person in a position of authority, whereas adherence denotes following a set of rules or principles. Conformity conveys the idea of following a group norm, tradition, or standard. Observance refers to fulfilling religious or social customs or duties. The antonyms of non-observance bring to light the importance of following rules and regulations, which regulate and maintain order in society.