obligatory
🇺🇸
/əˈblɪɡətɔːri/
🇬🇧
/əˈblɪɡətri/
required by law or rule
Wearing a helmet is obligatory for all cyclists.
모든 자전거 이용자는 헬멧 착용이 의무적입니다.
expected or usual
The obligatory family photo was taken after dinner.
저녁 식사 후 의례적인 가족 사진이 촬영되었습니다.