obligatory
/BrE əˈblɪɡət(ə)ri 
, AmE əˈblɪɡəˌtɔri /
adjective
1 (compulsory) obbligatorio (to do fare)
to make it obligatory for sb to do sth rendere obbligatorio per qcn fare qcs
2 (customary) d'obbligo
obligatory
Italian → English
Oxford Italian–English