serous
Containing, secreting, or resembling serum; watery; a fluid or discharge that is pale yellow and transparent, usually representing something of a benign nature. (This contrasts with the term sanguine, which means blood-tinged and usually harmful.)

severe
Very bad or intense.
Strict or harsh.
Sober, plain in appearance, austere.

severer
comparative form of severe: more severe

severest
superlative form of severe: most severe

shameless
Having no shame, no guilt nor remorse over something considered wrong; immodest, brazen; unable to feel disgrace.
Not subject to other people’s shaming or reproach.

shan
unfair, harsh
poor, low-quality

shand
Shame; scandal; disgrace.
Base coin; one with mixed metals.

shanker
One who shanks (in any of various senses).
One who shanks (in any of various senses).

shankest
superlative form of shank: most shank

sheeit
Pronunciation spelling of shit, representing African-American Vernacular and Southern US English.

sheeyit
Pronunciation spelling of shit, representing African-American Vernacular and Southern US English.

sheit
Pronunciation spelling of shit, representing African-American Vernacular and Southern US English.

shi
Abbreviation of shibire.

shickery
Shabby; bad.

shiet
Pronunciation spelling of shit, representing African-American Vernacular and Southern US English.

shii
Pronunciation spelling of shit.
Pronunciation spelling of shit.

shirtless
Without a shirt.
Not wearing a shirt; having a bare torso, barechested
Very poor.

shitacular
Extremely bad or disagreeable.

shitawful
Very awful.

shiter
comparative form of shite: more shite

shitest
superlative form of shite: most shite

shitfuck
Extremely bad.

shitfucks
plural of shitfuck

shitsucking
Alternative spelling of shit-sucking.

shitter
One who defecates.
A toilet or lavatory; an outhouse.
The anus.
A contemptible person or thing.
Someone lacking skill, especially in a video game.

shittish
Somewhat shit; more or less bad.

shoddier
comparative form of shoddy: more shoddy

shoddies
plural of shoddy

shoddiest
superlative form of shoddy: most shoddy

shoddy
Of poor quality or construction.
Poor; low.
Pretentious, sham, counterfeit.
Ambitious by reason of newly-acquired wealth; nouveau riche.

shoddyite
A nouveau riche or social climber.
A supplier who profited from United States government contracts during the Civil War by supplying cheap, inferior goods.

shoddyites
plural of shoddyite

shonkier
comparative form of shonky: more shonky

shonkiest
superlative form of shonky: most shonky

shonky
Of poor or dubious quality, shoddy, unreliable; deviously dishonest, fraudulent.

shrewd
Showing clever resourcefulness in practical matters.
Artful, tricky or cunning.
streetwise, street-smart.
Knowledgeable, intelligent, keen.
Nigh accurate.
Severe, intense, hard.
Sharp, snithy, piercing.
Bad, evil, threatening.
Portending, boding.
Noxious, scatheful, mischievous.
Abusive, shrewish.
Scolding, satirical, sharp.

shrewde
Obsolete spelling of shrewd.

shrewder
comparative form of shrewd: more shrewd

shrewdest
superlative form of shrewd: most shrewd

shrewish
Of or pertaining to a shrew (a nagging, ill-tempered woman).
Bad-tempered; ill-natured; obstinate, as a shrew.

sinful
Having sinned; guilty of sin.
Constituting a sin; morally or religiously wrong; wicked; evil.
decadent (luxuriously self-indulgent)

sinfuller
comparative form of sinful: more sinful

sinfullest
superlative form of sinful: most sinful

sinistrous
On the left side; inclined to the left; sinistral.
wrong, sinister, absurd, or perverse

skint
Penniless, poor, impecunious, broke.
skinned

skinter
comparative form of skint: more skint

skintest
superlative form of skint: most skint

skunked
simple past and past participle of skunk

slanderous
Both untrue and harmful to a reputation.

slicht
Bad, of poor quality (as, goods).

smeggy
Bad, foul, inferior.

smellier
comparative form of smelly: more smelly

smelliest
superlative form of smelly: most smelly

smelly
Having a bad smell.
Having a quality that arouses suspicion.
Having signs that suggest a design problem; having a code smell.

snaggier
comparative form of snaggy: more snaggy

snaggiest
superlative form of snaggy: most snaggy

snaggy
Covered in snags, or similar sharp projections.
Bad-tempered; crotchety.

snakebit
Bitten by a snake.
Experiencing a period of bad luck; unlucky.
Jumpy, as if expecting to struck by sudden misfortune.
Being drunk and high at the same time.

socionegative
That has a negative impact on society

solecistical
Pertaining to, or involving, a solecism; incorrect.

somniferous
causing or inducing sleep, normally with harmful overtones.

sonofabitching
awful; terrible

sophistical
Pertaining to a sophist or sophistry.
Fallacious, misleading or incorrect in logic or reasoning, especially intentionally.

sorer
comparative form of sore: more sore

sorest
superlative form of sore: most sore

splenetic
Bad-tempered, irritable, peevish, spiteful, habitually angry.
Related to the spleen.

splenetick
Obsolete form of splenetic.

spoilable
Liable to spoil or go bad.

stimky
Deliberate misspelling of stinky.

stinkier
comparative form of stinky: more stinky

stinkies
plural of stinky

stinkiest
superlative form of stinky: most stinky

stinkless
That does not stink; that lacks a bad smell.

stinko
Drunk
Of poor quality.

stinky
Having a strong, unpleasant smell; stinking.
Bad, undesirable.

strange
Not normal; odd, unusual, surprising, out of the ordinary, often with a negative connotation.
Unfamiliar, not yet part of one's experience.
Outside of one's current relationship; unfamiliar.
Having the quantum mechanical property of strangeness.
Of an attractor: having a fractal structure.
Belonging to another country; foreign.
Reserved; distant in deportment.
Backward; slow.
Not familiar; unaccustomed; inexperienced.
Not belonging to one.

strangest
superlative form of strange: most strange

subcontraries
plural of subcontrary

subcontrary
Contrary in an inferior degree.
Contrary in an inferior degree.

subprime
Less than prime; inferior.
Designating a loan (typically at a greater than usual rate of interest) offered to a borrower who is not qualified for other loans (for example, because of a poor credit history).
Designating a type of commercial lending rate, less than the prime rate, offered to desirable borrowers.

subprimes
plural of subprime

suckful
sucky, bad

sucktacular
Extremely bad.

sucktastic
Bad; terrible.

superexponential
Having the properties that f(0) = 1 and ∀ g,h ≥ 0: f(g)f(h) ≤ f(g+h) .

swearier
comparative form of sweary: more sweary

sweariest
superlative form of sweary: most sweary

sweary
Inclined to swear; characterised by bad language.

switchfoot
Riding with one's wrong foot forward, i.e. opposite to one's usual natural/goofy preference.

switchfoots
plural of switchfoot

tackier
comparative form of tacky: more tacky

tackiest
superlative form of tacky: most tacky

tacky
Of a substance, slightly sticky.

tantrabogus
An odd-looking or menacing object, potentially related to the devil or bogeyman.

tantrumy
Of, or relating to a tantrum; displaying childish behavior or experiencing an episode of bad temper.

tarrable
terrible

teeerrible
Elongated form of terrible.

teenful
Full of grief; harmful; afflicted; troublesome; vexatious

telepathetic
Bad at telepathy.

temperish
Peevish; cross.
Having a bad-tempered disposition; moody or volatile.

tempersome
Characterised or marked by a temper; bad-tempered; temperamental; hotheaded; moody.

tempestous
Obsolete form of tempestuous.

tempestuous
Of, pertaining to, or resembling, a tempest; also, of a place: frequently experiencing tempests; (very) stormy.
Characterized by disorderly, frenetic, or violent activity; stormy, tumultuous, turbulent; also, of a person, their behaviour or nature, etc.: characterized by bouts of bad temper or sudden changes of mood; impetuous, stormy, temperamental.