freshness vs. glow
flair vs. genius
faithfulness vs. fidelity
forgivingness vs. kindness
fear vs. fearfulness
fearfulness vs. fright
filthiness vs. nastiness
frailty vs. vice
feebleness vs. frailty
frailty vs. infirmity
frailness vs. frailty
frailty vs. valetudinarianism
fatuity vs. silliness
fatuousness vs. silliness
foresight vs. foresightedness
foresight vs. foresightfulness
farsightedness vs. foresight
foresight vs. prospicience
foresight vs. prevision
frugality vs. frugalness
falseness vs. insincerity
falseness vs. inconstancy
falseness vs. falsity
fulsomeness vs. unction
faithlessness vs. inconstancy
fickleness vs. inconstancy
faultlessness vs. impeccability
fluster vs. perturbation
fractiousness vs. wilfulness
frostiness vs. hoariness
flabbiness vs. limpness
flabbiness vs. flaccidity
flavorsomeness vs. flavoursomeness
flavorsomeness vs. savoriness
flavorlessness vs. tastelessness
flavourlessness vs. tastelessness
fullness vs. mellowness
fragrance vs. perfume
foulness vs. malodorousness
foulness vs. raininess
foulness vs. nastiness
fetidness vs. malodorousness
fleshiness vs. obesity
fibrosity vs. fibrousness
ferocity vs. violence
fierceness vs. violence
furiousness vs. violence
fury vs. violence
fury vs. madness
femaleness vs. feminineness
feebleness vs. tenuity
flimsiness vs. shoddiness
fragility vs. frangibleness
fragility vs. frangibility
fugaciousness vs. fugacity
farness vs. remoteness
farawayness vs. remoteness
futurity vs. hereafter
footprint vs. step
favorableness vs. positivity
favourableness vs. positivity
feasibility vs. feasibleness
fecundity vs. fruitfulness
fecundity vs. fertility
fertility vs. richness
fertility vs. natality
finiteness vs. finitude
flesh vs. shape
flesh vs. pulp
freckle vs. lentigo
fuzz vs. hair
funicle vs. funiculus
factor vs. gene
festering vs. pus
festering vs. suppuration
fascicle vs. fascicule
forebrain vs. prosencephalon
fanny vs. tail
foramen vs. hiatus
foreskin vs. prepuce
fistula vs. sinus
femur vs. thighbone
femoris vs. femur
forefinger vs. index
flatfoot vs. splayfoot
flatfoot vs. patrolman
faerie vs. fairyland
faery vs. fairyland
faerie vs. faery
faerie vs. fairy
faerie vs. fay
faerie vs. sprite
forethought vs. premeditation
faculty vs. module
faculty vs. staff
formula vs. pattern
formula vs. rule
formula vs. recipe
fantasy vs. phantasy
fantasy vs. illusion
fantasize vs. fantasy
fantasise vs. fantasy
fog vs. murkiness
fog vs. obscure
fetor vs. malodor
foetor vs. malodor
flavor vs. nip
flavor vs. flavour
flavor vs. season
flavour vs. nip
familiarisation vs. familiarization
farsightedness vs. hyperopia
farsightedness vs. presbyopia
factorisation vs. factorization
factoring vs. factorization
foretelling vs. prediction
figuring vs. reckoning
fare vs. menu
fare vs. transportation
foreordination vs. predetermination
freethinking vs. rationalism
fossilology vs. paleontology
fetology vs. foetology
futuristics vs. futurology
fanaticism vs. fanatism
fanaticism vs. zealotry
forefront vs. head
foldout vs. gatefold
firmware vs. microcode
fable vs. legend
foreword vs. prolusion
fiat vs. order
floater vs. spots
floater vs. vagabond
florilegium vs. garland
flummery vs. mummery
folderol vs. trumpery
flick vs. jerk
flick vs. riffle
footmark vs. step
fountainhead vs. wellspring
fountainhead vs. head
fleer vs. runaway
fib vs. story
forecasting vs. prediction
forecast vs. prognosis
forecast vs. presage
forecast vs. omen
forecast vs. portend
forecast vs. prognosticate
forecast vs. foreshadow
forecast vs. foretell
forecast vs. prefigure
forecast vs. predict
footer vs. footnote
footer vs. pedestrian
forerunner vs. predecessor
forerunner vs. precursor
fanfare vs. flourish
flourish vs. tucket
flourish vs. wave
flourish vs. thrive
flourish vs. prosper
frown vs. scowl
frown vs. glower
flaunt vs. swank
funnies vs. strip
farce vs. travesty
farce vs. forcemeat
farce vs. stuff
folk vs. folks
family vs. folk
folk vs. kinsfolk
folk vs. kin
folk vs. kinfolk
folk vs. sept
folk vs. phratry
folk vs. tribe
funk vs. wince
flatulence vs. turgidity
flatulence vs. gas
filth vs. obscenity
filth vs. nastiness
filth vs. stain
filth vs. skank
forewarning vs. premonition
flier vs. flyer
foreknowledge vs. precognition
foreboding vs. premonition
feast vs. spread
feast vs. feed
feast vs. junket
fate vs. fortune
fate vs. luck
fate vs. lot
fate vs. portion
famine vs. shortage
foretoken vs. sign