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

 

dishonourable

 adjective
(especially US English dishonorable)adjective
BrE BrE//dɪsˈɒnərəbl//
 
; NAmE NAmE//dɪsˈɑːnərəbl//
 
Immoral
 
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not deserving respect; immoral or unacceptable It would have been dishonourable of her not to keep her promise. He was given a dishonourable discharge (= an order to leave the army for unacceptable behaviour). opposite honourable See related entries: Immoral