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



BrE BrE//ˈheɪnəs//
; NAmE NAmE//ˈheɪnəs//
[usually before noun](formal) Immoral
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morally very bad a heinous crime See related entries: Immoral Word Origin late Middle English: from Old French haineus, from hair ‘to hate’, of Germanic origin.
See the Oxford Advanced American Dictionary entry: heinous