From Longman Dictionary of Contemporary Englishdishonourabledis‧hon‧our‧a‧ble British English, dishonorable American English /dɪsˈɒnərəbəl $ -ˈɑː-/ adjective RIGHT/PROPERnot morally correct or acceptable OPP honourable Surrender was seen as dishonourable.
Examples from the Corpus
dishonourable• Why was he insisting that her behaviour had been dishonourable?• Hayley's crimes are petty and dishonourable, a contrast which reveals the falsity of the narrative assumptions Philip makes.• He is not prepared to discuss this dishonourable argument.• Ideas about immorality and what constitutes dishonourable conduct change over time, but the views of judges change more slowly than most.• Over the past three years they have turned one of the most dishonourable Soviet professions into something worthy of admiration. 