Definition of dutiful adjective from the Oxford Advanced American Dictionary

     

    dutiful

     adjective
    adjective
    NAmE//ˈdut̮ɪfl//
     
     
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  1. 1doing everything that you are expected to do; willing to obey and to show respect synonym obedient
  2. 2 a dutiful daughter/son/wife
NAmE//ˈdut̮ɪfli//
 
adverb We laughed dutifully at all his jokes, even the ones that weren't funny.
See the Oxford Advanced Learner's Dictionary entry: dutiful