Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

diabolical

adjective

Synonyms and Antonyms of diabolical

  1. of, relating to, or worthy of an evil spirit <the police quickly mobilized to track down the diabolical serial killer> Synonyms cacodemonic, demoniac (also demoniacal), demonian, demonic (also demonical), devilish, fiendish (or diabolic), Luciferian, satanicRelated Words hellish, infernal; baleful, evil, sinister; malevolent, malicious, malignant; heinous, monstrous; black, immoral, iniquitous, nefarious, vicious, vile, villainous, wicked; barbarous, cruel, ferocious, inhuman, savageNear Antonyms celestial, heavenly; beneficent, benevolent, benign, benignant; godly, holy, sainted, saintly; ethical, good, moral, righteous, virtuousAntonyms angelic (or angelical)



Variants of diabolical

or

diabolic


Learn More about diabolical


Seen and Heard

What made you want to look up diabolical? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a jerking and twitching of the body

Get Word of the Day daily email!