fiendish
[feen-dish]
adjective
diabolically cruel and wicked.
Origin of fiendish
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for fiendish
nefarious, brutish, atrocious, beastly, cruel, demonic, devilish, diabolic, evil, hellish, inhuman, malicious, sadistic, satanic, savage, vicious, wicked, demonicalExamples from the Web for fiendish
Contemporary Examples of fiendish
Surely only an advanced hacker could mastermind such a fiendish act — right?
Somewhere in the Afterlife, Laurence Sterne must have been tickled to see his fiendish book infused with new life.
Croatians, naturally, were the fiendish enemy, second only to the Turks.
Historical Examples of fiendish
No wonder he is sometimes provoked to fiendish outbursts of wrath.
A Treatise on Parents and ChildrenGeorge Bernard Shaw
All that fiendish cruelty and the demon of destruction could do was done.
The Roof of FranceMatilda Betham-Edwards
What was it—madness, a nightmare, or a trap into which he had been decoyed with fiendish artfulness?
The Secret AgentJoseph Conrad
This language is wanton cruelty,—it is fiendish insult,—is it not, Evelyn?
Alice, or The Mysteries, CompleteEdward Bulwer-Lytton
So avenged I their fiendish deeds death-fall of Danes, as was due and right.
BeowulfAnonymous
fiendish
adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Online Etymology Dictionary, © 2010 Douglas Harper