obligatory

This term carries a strong sense of external imposition, whether through law, regulation, or strict social codes. It describes a requirement that leaves no room for personal choice or discretion, often evoking a feeling of duty or necessity. In a more critical or cynical sense, the word describes elements that appear in a work or event simply because they are expected by tradition. This usage suggests a lack of originality, implying that the action is a mere formality or a cliché rather than a meaningful choice.