| A | B |
|---|
| flippant | lacking proper seriousness |
| flit | fly; dart lightly |
| floe | mass of floating ice |
| flounder | struggle and thrash about |
| flourish | grow well; prosper |
| flout | reject; mock |
| fluctauate | waver; shift |
| fluency | smoothness of speech |
| fluke | unlikely occurrence; stroke of fortune |
| fluster | confuse |
| flux | flowing; series of changes |
| fodder | coarse food for cattle, horses, etc |
| foible | weakness; slight fault |
| foil | contrast |
| foil | defeat; frustrate |
| foliage | masses of leaves |
| foment | stir up; instigate |
| fop | dandy |
| forbearance | patience |
| ford | place where a river can be crossed on foot |
| forebears | ancestors |
| foreboding | premonition of evil |
| forensic | suitable to debate or courts of law |
| foreshadow | give and indication beforehand; portend |
| forsight | ability to forsee future happenings |
| forestall | prevent by taking action in advance |
| forgo | give up; do without |
| forlorn | sad and lonely; wretched |
| formality | ceremonious quality |
| formidable | inspiring fear or apprehension |
| forsake | desert; abandon; renounce |
| forswear | renounce; abandon |
| forte | strong point or special talent |
| forthright | out spoken |
| fortitude | bravery |
| fortuitous | accidental |
| forum | place of assembly to discuss public concerns |
| foster | rear; encourage |
| founder | person who establishes( an organization, business |
| fracas | brawl |
| fractious | unruly; disobedient; irritable |
| frail | weak |
| franchise | right granted by authority |
| frantic | wild |
| fraternize | associate in a friendly way |
| fraudulent | cheating |
| fraught | filled |
| fray | brawl |
| frenetic | frenzied; frantic |
| frenzied | madly excited |
| fresco | painting on plaster |
| fret | to be annoyed or vexed |
| friction | clash in opinion |
| frigid | intensely cold |
| frolicsome | prankish; gay |
| frond | fern leaf; palm or banana leaf |
| fruition | bearing of fruit |
| frustrate | thwart; defeat |
| fugitive | fleeting or transitory |
| fulcrum | support on which a lever rests |
| fulsome | disgustingly excessive |
| fundamental | basic; primary |
| furlough | leave of absence |
| furor | frenzy; great excitement |
| fusion | union; blending |
| futile | useless; hopeless |
| gadfly | animal biting fly |
| gaffe | social blunder |
