exorbitant much too high or great
extant still in existence
extinct no longer active
extirpate destroy utterly1
extort obtain by threats， violence
exuberance state of growing vigorously； being full of life
facilitate make easy （eg. a process of smth）
fallacy false or mistaken belief
fatuous without sense， foolish self-satisfaction
faucet device for controlling the outflow of a liquid
fawn young deer， try to win smb's favour by servile behaviour
feckless futile2， irresponsible， inefficient3
feint pretend
felon person guilty of murder
ferment substance； become excited
ferocity savage4 cruelty
fertile producing much， full of ideas
fertilize make fertile or productive
fervid showing earnest feeling
fervor warmth of feelings； earnestness
fidelity loyalty5， accuracy
fidget move restlessly， make nervous
figurehead carved image on the prow6 of a ship
finite limited， having bounds
flamboyant brightly colored， florid
flammable having tendency to burst into flames
flaunting show off complacently7
flaw crack， lessen8 value
fledged able to fly， trained， experienced
fleet number of ships， quick-moving
fleeting passing quaickly
flexibility easily bent9 without braking
flinch drow， move back， wince10
florid very much ornamented11； naturally red （eg. of face）
flout oppose， treat with contempt
fluster make nervous or confused
foment put smth （to lessen the pain）， cause smth
foppish like a man who pays too much attention to his clothes
forbear refrain from， be patient； ancestor
ford shallow place in a river （to cross）
forfeit suffer the loss of smth
forge workshop for the shaping of metal； to shape metal； lead
forgery counterfeit
fortuitous happening by chance
fragile easily injured， broken or destroyed
