from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Suggesting the horror of death and decay; gruesome: macabre tales of war and plague in the Middle Ages. See Synonyms at ghastly.
- adj. Constituting or including a representation of death.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Representing or personifying death.
- adj. Obsessed with death or the gruesome.
- adj. Ghastly, shocking, terrifying.
from the GNU version of the Collaborative International Dictionary of English
- adj. portraying human injury or death in a way so as to inspiring shock or horror; gruesome; ghastly.
- adj. Pertaining to or portraying the grim aspects of death, or the allegorical dance of death.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. shockingly repellent; inspiring horror
Ultimately from Old French (Danse) Macabre, (dance) of death, perhaps alteration of Macabe, Maccabee, from Latin Maccabaeus, from Greek Makkabios.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French macabre, whose etymology is uncertain. (Wiktionary)