Main entry: diabolic, diabolical, demonic, fiendish, unholy, satanic, infernal, hellish
Definition: extremely evil or cruel; expressive of cruelty or befitting hell
Usage: something demonic in him--something that could be cruel; fires lit up a diabolic scene; diabolical sorcerers under the influence of devils; a fiendish despot; hellish torture; infernal instruments of war; satanic cruelty; unholy grimaces
Main entry: beastly, god-awful, hellish
Definition: very unpleasant
Usage: hellish weather; stop that god-awful racket