from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Grossly wicked or reprehensible; abominable: a heinous crime.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Totally reprehensible.
from the GNU version of the Collaborative International Dictionary of English
- adj. Hateful; hatefully bad; flagrant; odious; atrocious; giving great offense; -- applied to deeds or to character.
from The Century Dictionary and Cyclopedia
- Hateful; odious; reprehensible.
- Hence Reprehensibly great; enormous; aggravated: sometimes used (in a similar sense) of persons.
- Synonyms Wicked, Infamous, etc. (see atrocious); flagitious, dreadful, horrible.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. extremely wicked, deeply criminal
Middle English, from Old French haineus, from haine, hatred, from hair, to hate, from Frankish *hatjan.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old French haineus (compare French haineux) from haïr ("to hate"), of Germanic origin. (Wiktionary)