fiendishly
Syllables: fiend·ish·lyUK/ˈfiːndɪʃli/
fiendishly adverb: in a fiendish manner; evilly, wickedly.
Adverb
fiendishly (comparative more fiendishly, superlative most fiendishly)
- In a fiendish manner; evilly, wickedly.
- At a side door, reclined on a couch, two guards of the haram, with their naked swords grasped in their hands, and features, fiendishly contorted between sleep and dissolution, seemed to menace death to any who should venture to approach.1830 November – 1831 November (date written), Jedadiah Cleishbotham [pseudonym; Walter Scott], chapter X, in Tales of My Landlord, Fourth and Last Series. […], volume I (Count Robert of Paris)...
- […] I was suddenly awakened by a savage looking fellow standing close to my bedside, ordering me and my companion to leave our bed forthwith or suffer the consequences; at the same time using the most blasphemous language, and uttering the most hideous oaths imaginable, while fiendishly striking...1884, Eliza R[oxcy] Snow Smith, chapter XXV, in Biography and Family Record of Lorenzo Snow, One of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints, Salt Lake City, Ut....
- Synonyms:
- satanically
- Extremely, very in harsh or negative contexts.
- Either the Russians are so fiendishly clever that they've managed to keep one of their agents running in this organization for over twenty years or they're so fiendishly clever that they're sending us false defectors to claim that they have.2009, Jeremy Duns, Free Agent, London: Simon & Schuster UK, →ISBN, page 78
- In this operation, veins or arteries are taken from various body parts and used to bypass blockages or narrowings in the coronary arteries, those fine, fiddly, yet fiendishly important vital suppliers to the heart muscle itself.2015, Samer Nashef, The Naked Surgeon: The Power and Peril of Transparency in Medicine, Melbourne, Vic.: Scribe, →ISBN
Examples of fiendishly in a sentence
- It was hot there too; big flies buzzed fiendishly, and did not sting, but stabbed.1899 February, Joseph Conrad, “The Heart of Darkness”, in Blackwood’s Edinburgh Magazine, volume CLXV, number M, New York, N.Y.: The...
- The eyes in the cadaverous face blazed fiendishly at me and I blanched from the concentrated satanic fury in them.1929 October–December, Robert E[rvin] Howard, “Skull-Face”, in Weird Tales, Indianapolis, Ind.: Popular Fiction Pub. Co., →OCLC...
- Balancing horror and comedy is fiendishly difficult.2017 October 27, Alex McLevy, “Making a Killing: The Brief Life and Bloody Death of the Post-Scream Slasher Revival”, in The A.V. Club...
- These cross-border value calculations can get fiendishly complicated, says Jack Bobo, director of the University of Nottingham’s Food Systems Institute.2023 November 6, Matt Reynolds, “The World's Broken Food System Costs $12.7 Trillion a Year”, in Wired:
Synonyms of fiendishly
Forms of fiendishly
| comparative | more fiendishly |
|---|---|
| superlative | most fiendishly |
Origin of fiendishly
From fiendish + -ly.
Questions about fiendishly
- What does fiendishly mean?
- Fiendishly means in a fiendish manner; evilly, wickedly.
- How do you use fiendishly in a sentence?
- It was hot there too; big flies buzzed fiendishly, and did not sting, but stabbed.
- What part of speech is fiendishly?
- Fiendishly is an adverb.
- How do you pronounce fiendishly?
- Fiendishly is pronounced /ˈfiːndɪʃli/ (UK).
Words near fiendishly in the dictionary
Source and license
Adapted from Wiktionary: fiendishly (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: en-au-fiendishly.ogg.
Cite this entry: “fiendishly.” Word.ws, https://word.ws/fiendishly. Based on Wiktionary, CC BY-SA 4.0.