English

Definition of indecorous adjective from the Oxford Advanced Learner's Dictionary

 

indecorous

 adjective
adjective
BrE BrE//ɪnˈdekərəs//
 
; NAmE NAmE//ɪnˈdekərəs//
 
(formal)
 
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(of behaviour) embarrassing or not socially acceptable Word Origin late 17th cent.: from Latin indecorus (from in- ‘not’ + decorus ‘seemly’) + -ous.
See the Oxford Advanced American Dictionary entry: indecorous