American English

Definition of obligatory adjective from the Oxford Advanced American Dictionary

     

    obligatory

     adjective
    adjective
    NAmE//əˈblɪɡəˌtɔri//
     
     
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  1. 1obligatory (for somebody) (to do something) (formal) that you must do because of the law, rules, etc. synonym compulsory It is obligatory for all employees to wear protective clothing. opposite optional
  2. 2(often humorous) that you do because you always do it, or other people in the same situation always do it In the mid 60s he took the almost obligatory trip to India.
See the Oxford Advanced Learner's Dictionary entry: obligatory