fiendish

== English == === Etymology === From fiend +‎ -ish. === Pronunciation === IPA(key): /ˈfiːndɪʃ/ === Adjective === fiendish (comparative more fiendish, superlative most fiendish) Sinister; evil; like a fiend. Synonym: conniving Very difficult. ==== Derived terms ==== fiendishly fiendishness ==== Translations ==== === Anagrams === finished