diabolical
15 synonyms and 9 antonyms for diabolical, grouped by meaning and by how common each one is.
Adj — Extremely cruel or wicked; evil.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Antonyms
How to use diabolical
The word patterns that sound natural to a native speaker.
In British English, "diabolical" is often used casually to mean "terrible," well beyond anything actually evil.
Etymology
From diabolic + -al, ultimately from Greek diabolos ("slanderer, devil").
Full origin of diabolical →