| facade | a showy misrepresentation intended to conceal something unpleasant |
| facetious | cleverly amusing in tone |
| facile | arrived at without due care or effort |
| facsimile | duplicator that transmits the copy by wire or radio |
| factitious | not produced by natural forces |
| fallacious | based on an incorrect or misleading notion or information |
| fallow | cultivated land that is not seeded for one or more growing seasons |
| farce | a comedy characterized by broad satire and improbable situations |
| fastidious | giving and careful attention to detail |
| fatalism | a philosophical doctrine holding that all events are predetermined in advance for all time and human beings are powerless to change them |
| febrile | of or relating to or characterized by fever |
| feign | make believe with the intent to deceive |
| feint | any distracting or deceptive maneuver (as a mock attack) |
| felicitous | apt; suitably expressed, well chosen, apropos |
| fetish | excessive or irrational devotion to some activity |
| fetter | a shackle for the ankles or feet |
| fiasco | a sudden and violent collapse |
| fiat | a legally binding command or decision entered on the court record (as if issued by a court or judge) |
| figment | a contrived or fantastic idea |
| filch | make off with belongings of others |
| filial | relating to or characteristic of or befitting an offspring |
| filibuster | a tactic for delaying or obstructing legislation by making long speeches |
| freebooter | someone who takes spoils or plunder (as in war) |
| filigree | delicate and intricate ornamentation (usually in gold or silver or other fine twisted wire) |
| finesse | subtly skillful handling of a situation |
| firebrand | someone who deliberately foments trouble |
| flaccid | lacking firmness or stiffness |
| fleck | a small contrasting part of something |
| flippant | showing inappropriate levity |
| flit | fly; fly or move lightly or quickly; dart lightly; pass swiftly by; Ex. a bee ~ing from flower to flower |
| floe | a flat mass of ice (smaller than an ice field) floating at sea |
| florid | elaborately or excessively ornamented |
| flotsam | the floating wreckage of a ship |
| flounder | walk with great difficulty |
| flout | treat with contemptuous disregard |
| foible | a behavioral attribute that is distinctive and peculiar to an individual |
| foist | to force onto another |
| foppish | affecting extreme elegance in dress and manner |
| foray | an initial attempt (especially outside your usual areas of competence) |
| foreboding | a feeling of evil to come |
| forlorn | pitiable in circumstances especially through abandonment |
| fracas | noisy quarrel |
| fresco | a durable method of painting on a wall by using watercolors on wet plaster |
| frieze | an architectural ornament consisting of a horizontal sculptured band between the architrave and the cornice |
| fritter | spend frivolously and unwisely |
| fulminate | berate, vituperate, to thunder out, to explode, |
| furor | a sudden outburst (as of protest) |
| furtive | marked by quiet and caution and secrecy |
| fusillade | rapid simultaneous discharge of firearms |