F₄I₁E₁N₁D₂I₁S₁H₄

15 points

FIENDISH is validvalid

extremely wicked or cruel [adj] : FIENDISHLY [adv], FIENDISHNESS [n]

67,192 of 196,601 in NWL2023·also valid in CSW24

devilishly cruel [adj FIENDISHLY]

88,200 of 280,887 in CSW24·also valid in NWL2023