Thesaurus.com
Dictionary.com
Showing results for diabolic. Search instead for diabolized.
Definitions

diabolic

[dahy-uh-bol-ik] / ˌdaɪ əˈbɒl ɪk /
ADJECTIVE
evil, fiendish
Synonyms
WEAK
Mephistophelian atrocious cruel damnable demoniac demonic devilish hellish impious infernal monstrous nasty nefarious satanic serpentine shocking unhallowed unpleasant vicious vile villainous wicked
Antonyms
WEAK
gentle kind moral nice

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.