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fiendish

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1 of, relating to, or worthy of an evil spirit
  • a fiendish delight in playing cruel tricks
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2 having or showing the desire to inflict severe pain and suffering on others
  • He shook with fiendish laughter as he concocted his cruel plan.
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Phrases Synonymous with fiendish

red in tooth and claw

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to speak or write verbosely and windily

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