heinou

a. [ OF. haïnos hateful, F. haineux, fr. OF. haïne hate, F. haine, fr. haïr to hate; of German origin. See Hate. ] Hateful; hatefully bad; flagrant; odious; atrocious; giving great offense; -- applied to deeds or to character. [ 1913 Webster ]

It were most heinous and accursed sacrilege. Hooker. [ 1913 Webster ]

How heinous had the fact been, how deserving
Contempt! Milton.

Syn. -- Monstrous; flagrant; flagitious; atrocious.

-- Hei"nous*ly, adv. -- Hei"nous*ness, n. [ 1913 Webster ]