The meaning of DIABOLICAL is of, relating to, or characteristic of the devil : extremely evil. How to use diabolical in a sentence. Did you know?

DIABOLICAL definition: 1. extremely bad or shocking: 2. evil, or caused by the Devil 3. extremely bad or shocking: . Learn more.

DIABOLICAL definition: having the qualities of a devil; devilish; fiendish; outrageously wicked. See examples of diabolical used in a sentence.

3 days ago · Synonyms for DIABOLICAL: demonic, sinister, malicious, satanic, fiendish, devilish, demoniac, wicked; Antonyms of DIABOLICAL: angelic, celestial, heavenly, benign ...

Define diabolical. diabolical synonyms, diabolical pronunciation, diabolical translation, English dictionary definition of diabolical. also di·a·bol·ic adj. 1. Of, concerning, or characteristic of the devil; satanic. 2. …

Learn the diabolical meaning, definition, synonyms, and usage. Explore connotations, literature context, and how to use diabolical accurately.

Jun 1, 2026 · Discover the full meaning of “diabolical,” including slang usage, origin, examples, tone, synonyms, and real-life context.

Diabolical means "evil." This is a strong word. Too much math homework might seem unfair, but it probably isn't diabolical.

Definition of diabolical adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

2 meanings: informal 1. excruciatingly bad; outrageous 2. (intensifier).... Click for more definitions.