fiendishness C2+ Topic:Describing People US /ˈfindɪʃnəs/ UK /ˈfiːndɪʃnəs/ See IPA manual Meanings 1 noun the quality of being cruelly wicked or devilishly clever The trap was set with calculated fiendishness. Thesaurus Synonyms 1 noun · the quality of being... wickednesscrueltymalevolencedevilishnesssavagerydiabolism ↔ Opposites kindnessbenevolencegoodness Word family Related forms fiendishfiend Etymology AI details From fiendish + -ness; fiend is from Old English fēond ('enemy, devil'), originally the present participle of fēogan ('to hate'), from Proto-Germanic *fijōjan. fēond Old English *fijōndz Proto-Germanic View etymology graph -> Topics Describing People Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # fiendishness **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /ˈfindɪʃnəs/ **IPA (UK):** /ˈfiːndɪʃnəs/ ## Meanings 1. the quality of being cruelly wicked or devilishly clever ## Examples - The trap was set with calculated fiendishness. ## Synonyms - wickedness - cruelty - malevolence - devilishness - savagery - diabolism ## Antonyms - kindness - benevolence - goodness ## Related Forms - fiendish - fiend ## Roots and Affixes - Root: fēond - Root: *fijōndz ## Etymology From fiendish + -ness; fiend is from Old English fēond ('enemy, devil'), originally the present participle of fēogan ('to hate'), from Proto-Germanic *fijōjan. ## AI Etymology Fiendishness comes from fiendish + -ness; fiend is from Old English fēond ('enemy, devil'), originally the present participle of fēogan ('to hate'), from Proto-Germanic *fijōjan. Morphologically, the account is both compositional and suffixal: -ness marks the visible structure by which the older base becomes the modern form. In present use, it is used as a noun meaning "the quality of being cruelly wicked or devilishly clever", so the historical material remains connected with the current sense rather than standing as bare ancestry. The wider English family includes related forms such as fiendish and fiend, showing how the same historical material continues to organize neighboring vocabulary. The named historical forms include Old English fēond and Proto-Germanic *fijōndz, keeping the history tied to concrete forms rather than a loose resemblance. ## Topics - Describing People - Word Formation & Derivatives markdown