fiendishly

adv (infml 口) very; extremely 很; 极: a fiendishly difficult puzzle 极难解开的谜 * It's fiendishly cold outside. 外面冷极了.

fiddling, fiddly, fidelity, fidget, fidgety, field, field hockey, Field Marshal, field officer, field sports, field-day, field-events, field-glasses, field-test, field-work, field-worker, fielder, fieldsman, fiend, fiendish, fierce, fiercely, fierceness, fierily, fieriness, fiery, fiesta, FIFA, fife, fifteen, fifteenth, fifth, fifthly, fiftieth, fifty, fifty pence (also fifty p, 50p), fifty-fifty, fig, fig-leaf, fight,