Synonyms of fiendishly

fiendishly

adverb

as in diabolically

Related Words

• diabolically
• insensitively
• ruthlessly
• cruelly
• disagreeably
• mercilessly
• pitilessly
• ungraciously
• heartlessly
• bitterly
• thoughtlessly
• unkindly
• balefully
• inconsiderately
• callously
• wickedly
• unfeelingly
• ill
• inhumanely
• obnoxiously
• enviously
• ill-naturedly
• soullessly
• misanthropically
• jealously
• resentfully
• caustically
• venomously
• invidiously
• vindictively
• viciously
• felly
• maliciously
• villainously
• hostilely
• antagonistically
• malevolently
• nastily
• vituperatively
• scornfully
• contemptuously
• disdainfully
• caddishly
• rancorously
• kindlessly
• acrimoniously
• spitefully
• malignantly
• hatefully
• evil-mindedly
• virulently
• hard-heartedly
• cattily
• despitefully
• bitchily
• envyingly
• deprecatingly
• meanly

Dissimilar Words

• kindly
• pleasantly
• benevolently
• agreeably
• amiably
• genially
• nicely
• affably
• graciously
• cordially
• benignantly
• thoughtfully
• lovingly
• humanely
• mercifully
• sensitively
• altruistically
• soulfully
• good-naturedly
• kindheartedly
• considerately
• sweetly
• gently
• good-humoredly
• sympathetically
• good-heartedly
• solicitously
• feelingly
• divinely
• compassionately
• tenderly
• angelically
• softheartedly

Example Sentences

Recent Examples of fiendishly

This problem can be fiendishly hard. — Ben Brubaker, Quanta Magazine, 11 May 2026

Imelda Marcos’ fetish for fiendishly expensive shoes was a running gag in the 1980s. — Theater Critic, Los Angeles Times, 20 Feb. 2026

Erivo enters in dark trousers and singlet, her body lean, sinewy, covered in tattoos, her head shorn, nose ringed, fingernails fiendishly extended, a vampire in waiting. — Demetrios Matheou, HollywoodReporter, 18 Feb. 2026

Of the four dropped catches, two were fiendishly difficult, one was eminently takeable, and one was a howler. — Tim Spiers, New York Times, 6 Jan. 2026

The ending is easy to anticipate and no less fiendishly pleasing for it; seeing the karmic scales balanced this well deserves a hearty Cryptkeeper cackle. — A.a. Dowd, Vulture, 3 Oct. 2025

Her fiendishly clever plot offers several twists that upend readers’ understanding of what has gone before. — Yvonne Zipp, Christian Science Monitor, 17 Sep. 2025

But at the time, training such a multilayer neural network was fiendishly difficult. — Jeremy Kahn, Fortune, 3 Sep. 2025

This fiendishly complex plug-in hybrid will be seen in just 1,500 copies, built over three years in a showpiece, enviro-friendly factory in Chengdu, China. — IEEE Spectrum, 31 Mar. 2020