stretch vs. unfold
stretchable vs. stretchy
strain vs. straining
strong vs. warm
stoic vs. stoical
snappish vs. snappy
snappy vs. whipping
searching vs. trenchant
salaried vs. stipendiary
sodden vs. soppy
shriveled vs. shrivelled
shriveled vs. shrunken
shriveled vs. withered
shriveled vs. wizen
shriveled vs. wizened
sere vs. shriveled
sear vs. shriveled
symmetric vs. symmetrical
slowgoing vs. unenergetic
scorbutus vs. scurvy
skittish vs. spooky
sneering vs. supercilious
snide vs. supercilious
sixpenny vs. threepenny
sixpenny vs. twopenny
sixpenny vs. tuppeny
speakable vs. utterable
styleless vs. unstylish
spruce vs. titivate
spruce vs. tittivate
strut vs. swagger
swagger vs. swagman
swagger vs. swaggie
swagger vs. swash
subversive vs. subverter
swank vs. swanky
strange vs. unknown
strange vs. unusual
scrawny vs. scrubby
scrawny vs. stunted
skinny vs. tightfitting
slender vs. slight
slender vs. slim
slender vs. svelte
slender vs. supple
slender vs. sylphlike
slender vs. thin
slight vs. thin
slim vs. thin
svelte vs. urbane
start vs. starting
skim vs. skimmed
skim vs. skimming
skim vs. skip
scan vs. skim
sterilised vs. sterilized
spinnable vs. spinnbar
splayfoot vs. splayfooted
slip vs. splay
social vs. societal
salty vs. sour
sour vs. sourness
sour vs. tartness
sour vs. turn
slaveholding vs. slavery
sham vs. simulate
suburbanised vs. suburbanized
steep vs. unconscionable
steep vs. usurious
storeyed vs. storied
shirty vs. snorty
surly vs. ugly
slimy vs. ugly
slimed vs. slimy
specious vs. spurious
swell vs. tumefy
swell vs. tumesce
swell vs. well
shattering vs. smashing
splenetic vs. splenic
semisoft vs. softish
symphonic vs. symphonious
suffering vs. woe
set vs. typeset
set vs. situated
spiritous vs. spirituous
stabilising vs. stabilizing
squat vs. underslung
squat vs. squatting
shit vs. squat
sallow vs. sickly
seedy vs. sickly
sickly vs. unwell
sunburned vs. sunburnt
superlunar vs. translunar
sanctionative vs. sanctioning
superlunary vs. translunar
sailing vs. soaring
sublunar vs. terrestrial
sublunary vs. terrestrial
shoddy vs. tawdry
skew vs. skewed
screaky vs. screechy
screaky vs. squeaking
screaky vs. squeaky
screaky vs. squealing
soprano vs. treble
seated vs. sitting
session vs. sitting
starved vs. starving
sensual vs. sultry
stifling vs. sultry
sulfurous vs. sultry
sulphurous vs. sultry
stifling vs. suppression
sulfurous vs. sulphurous
sweltering vs. sweltry
seriocomic vs. seriocomical
scrub vs. scrubbing
scour vs. scrub
scratch vs. scrub
strategic vs. strategical
sensational vs. sensory
sole vs. solitary
solitary vs. solitudinarian
sign vs. signal
signal vs. signaling
signal vs. signalise
signal vs. signalize
slurred vs. thick
segregated vs. unintegrated
secluded vs. sequestered
soporiferous vs. soporific
somniferous vs. soporiferous
somnific vs. soporiferous
stimulant vs. stimulating
smoothed vs. smoothened
sailing vs. seafaring
subocean vs. suboceanic
sting vs. stinging
sapless vs. weakly
synecdochic vs. synecdochical
stenosed vs. stenotic
seraphic vs. seraphical
squandered vs. wasted
shouted vs. yelled
seasonable vs. timely
soldierlike vs. soldierly
soldierly vs. warriorlike
singing vs. vocalizing
singing vs. telling
sinful vs. unholy
sinful vs. ungodly
synoecious vs. synoicous
sub vs. substitute
substitute vs. utility
supernormal vs. supranormal
schizoid vs. schizophrenic
seamanlike vs. seamanly
southernmost vs. southmost
sin vs. sinning
sundown vs. sunset
shut vs. unopen
surpassing vs. transcendent
squinched vs. squinting
serial vs. series
subterranean vs. ulterior
subterranean vs. subterraneous
subterraneous vs. ulterior
shopsoiled vs. shopworn
shed vs. slough
shed vs. throw
shed vs. spill
somatogenetic vs. somatogenic
secular vs. temporal
secular vs. worldly
streaked vs. streaky
striped vs. stripy
seeded vs. sown
smasher vs. sweetheart
standby vs. understudy
superficial vs. trivial
sublimate vs. subtilize
sublimate vs. subtilise
swollen vs. vain
surmise vs. suspect
suspicious vs. wary
surreal vs. surrealistic
semestral vs. semestrial
stock vs. strain
stock vs. store
symbolic vs. symbolical
scruffy vs. seedy
standardised vs. standardized
swinging vs. tripping
swing vs. swinging
swingy vs. tripping
singalong vs. singsong