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Definition of diabolical

diabolical

/ˌdaɪ.əˈbɑː.lɪ.kəl/
di · a · bol · i · cal
Adverb:diabolically
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diabolical Lexical Profile

diabolical Game Scores & Validity

• adjective

1

Characteristic of the devil, or so evil as to be suggestive of the devil; wicked and cruel.

Example

"The novel's antagonist devised a diabolical scheme to bankrupt the entire town."

2

British Disgracefully bad, unpleasant, or annoying.

Example

"The traffic through the city center this morning was absolutely diabolical."

Synonyms
View all synonyms for diabolical
Antonyms
View all antonyms for diabolical

• Rhymes for diabolical

• Nearby Words

diabetic
diablo
diabolic
diabolical
diabolically
diadem
diadem snake

Word Origin & Etymology

Derived from Late Latin 'diabolicus', from Ancient Greek 'diabolikos' (relating to the devil), ultimately from 'diabolos' (accuser or slanderer, literally 'one who throws across').

Cite this Entry

Wordmom. (2026). Definition of Diabolical. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/diabolical
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