fiendish (Meaning)

Wordnet

fiendish (s)

extremely evil or cruel; expressive of cruelty or befitting hell

Webster

Like a fiend; diabolically wicked or cruel; infernal; malignant; devilish; hellish.

The fiendish villain devised a diabolical plan to take over the world.
The serial killer displayed fiendish cunning in his gruesome acts of violence.
The fiendish plot twist in the movie left the audience shocked and intrigued.
The diabolical scientist conducted fiendish experiments on unsuspecting subjects.
The fiendish laughter of the madman echoed through the eerie corridors of the asylum.
The beleaguered detective faced fiendish riddles left at each crime scene.
The fiendishly clever thief managed to evade capture by the authorities.
The fiendish witch cast a malevolent spell, causing havoc in the kingdom.
The harrowing tale of the fiendish monster kept the villagers cowering in fear.
The fiendishly addictive video game captivated players and consumed countless hours of their lives.

extremely evil or cruel; expressive of cruelty or befitting hellLike a fiend; diabolically wicked or cruel; infernal; malignant; devilish; hellish.

diabolical, sinister,demonic, diabolic, demonical, demoniac, devilish, vicious,demoniacal, infernal

benign, celestial, celestial, beneficent, angelic, benevolent,angelic, beneficent, heavenly, benign

The fiendish villain devised a diabolical plan to take over the world.

The serial killer displayed fiendish cunning in his gruesome acts of violence.

The fiendish plot twist in the movie left the audience shocked and intrigued.

The diabolical scientist conducted fiendish experiments on unsuspecting subjects.