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adj
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adv

Textual thesaurus for "fiendish"

(adj) diabolic, diabolical, demonic, unholy, satanic, infernal, hellish

extremely evil or cruel; expressive of cruelty or befitting hell

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