injurious
Causing physical harm or injury; harmful, hurtful.
Causing harm to one's reputation; invidious, defamatory, libelous, slanderous.

innoxious
Having no harmful effect; harmless, innocuous.

insalutary
Not salutary or wholesome; bad for health.
Not tending to safety; productive of evil.

insidious
Causing harm in a stealthy, often gradual, manner.
Intending to entrap; alluring but harmful.
Treacherous.

inveterate
Firmly established from having been around for a long time; of long standing.
Having had a habit (usually a bad habit) for a long time.
Malignant; virulent; spiteful.

irrational
Not rational; unfounded, nonsensical or wrong-headed.
Of a real number, that cannot be written as the ratio of two integers.

jakun
Fascinated by objects, events, or experiences which seem ordinary to others.
Overly excited, bad-tempered, unruly, or unsophisticated.

jankier
comparative form of janky: more janky

jankiest
superlative form of janky: most janky

janky
Of poor quality.
Strange, odd.
Untrustworthy, disreputable.

jialat
Sapping of one’s strength; tiresome.
Terrible, disastrous; (of a person) affected by difficulties, in a dire situation.

kiasi
Unwilling to take a risk for fear that something bad or unfavorable will happen; cowardly, overly cautious and risk-averse.

kiasis
plural of kiasi.

killographic
Featuring graphic depictions of violence, especially of an intensity or form considered excessive and socially harmful.

kookie
A kookaburra (Dacelo novaeguineae).

kookier
comparative form of kooky: more kooky

kookies
plural of kookie
plural of kooky

kookiest
superlative form of kooky: most kooky

kooky
Eccentric, strange, or foolish; crazy or insane; kookish.
Behaving like a kook (a person with poor style or skill); kook-like.

lameo
A lame person; someone who is worthless or a loser.

lamo
Alternative form of lameo.

lanjiao
Penis

leukopoor
Poor in leukocytes.

lidder
A worker on an assembly line responsible for putting on lids.
A machine that puts on lids.

lidders
plural of lidder

lither
Lazy, slothful; listless.
Flexible, supple; also, agile, lithe.
Bad, evil; false.
In poor physical condition.

lossful
Causing loss or damage; harmful.
Lossy; involving loss of information.

lousey
Uncommon form of lousy; typically in the literal sense of infested with lice.

lousier
comparative form of lousy: more lousy

lousiest
superlative form of lousy: most lousy

lousy
Remarkably bad; of poor quality.
Dirty or untidy.
Unwell; under the weather.
Underhanded; mean; contemptible.
Infested with lice.
Filled or packed (with something, usually bad).

lovelorn
Abandoned or forsaken by one's lover; having constant bad luck in romance; desperate for love.
Unloved, bereft of love.

lowsie
Obsolete spelling of lousy.

lowsy
Obsolete spelling of lousy.

madder
A herbaceous plant, Rubia tinctorum, native to Asia, cultivated for a red-purple dye (alizarin) obtained from the root.
The root of the plant, used as a medicine or a dye.
A dye made from the plant.
A deep reddish colour, like that of the dye.

maddest
superlative form of mad: most mad

maggotier
comparative form of maggoty: more maggoty

maggotiest
superlative form of maggoty: most maggoty

maggotty
Alternative spelling of maggoty.

maggoty
Infested with and/or partially eaten by maggots; flyblown.
Full of whims; capricious; freakish.
Unpleasant or bad-tempered.

malafide
In bad faith.

malafides
plural of malafide

malcoordinated
Having poor coordination.

maldeveloped
developed in an improper or faulty way

malefic
Having an evil or harmful influence; baleful.

maleficent
Harmful or evil in intent or effect.

malefics
plural of malefic

malevolent
Having or displaying ill will; wishing harm on others.
Having an evil or harmful influence.

malignant
Harmful, malevolent, injurious.
Tending to produce death; threatening a fatal issue.

malodorous
Having a bad odor.
Highly improper.

malodourous
Misspelling of malodorous.

malpositioned
Badly or wrongly positioned; in the wrong place.

mank
To mutilate.

mankier
comparative form of manky: more manky

mankiest
superlative form of manky: most manky

manky
Unpleasantly dirty and disgusting.
Being or having bad weather.

mardier
comparative form of mardy: more mardy

mardies
plural of mardy

mardiest
superlative form of mardy: most mardy

mardy
Sulky or whining.
Non-cooperative, bad-tempered or terse in communication; grumpy.

matfelon
knapweed

maungy
Obsolete form of mangy.
Sulky, bad-tempered, or peevish.

megabad
Extremely bad.

microepidemic
An epidemic that is contained in a very small locality

microepidemics
plural of microepidemic

mindreader
Alternative form of mind-reader.

minus
Made less or reduced by (followed by an expression of number or quantity).
Without; deprived of.

misacylated
Incorrectly acylated; especially, combined with the wrong amino acid

misadvised
simple past and past participle of misadvise

misanthropic
Having a negative view of mankind. This may express itself as, e.g., distrust, dislike, hate, or contempt.

misasked
simple past and past participle of misask

miscaptioned
Having an incorrect caption

miscreant
Lacking in conscience or moral principles; unscrupulous.
Holding an incorrect religious belief.

miscreaunt
Obsolete form of miscreant.

miscreaunts
plural of miscreaunt

miseducative
Serving to educate in a bad or wrong way.

misexpressive
Wrongly expressive; expressing the wrong meaning.

misfolded
simple past and past participle of misfold

mishapen
Obsolete form of misshapen.

misinformative
Providing incorrect information; misleading.

miskeen
Poor, pathetic, innocent; (by extension) not affiliated with criminal gangs.

mismannered
Having bad manners; impolite.

misminded
Holding the wrong opinion or belief.

misnatured
Of a bad or wrong nature; malformed.

misnomed
Given the wrong name; referred to by a misnomer.

mispatterned
Having an incorrect pattern

misprejudiced
Holding a bad or wrong prejudice.

misprincipled
Having bad or wrong principles or moral values.

misproportioned
Having incorrect or distorted proportions.

misset
To set, adjust or calibrate incorrectly.
To place in the wrong location.

misshaded
simple past and past participle of misshade

misshapen
Having a bad, ugly or awkward shape; deformed; malformed; ill-shapen.
Morally or intellectually warped.

missized
Of the wrong size.

missyish
Like a young woman, especially in a negative sense; foolish, sentimental, inclined to give oneself airs, etc.

mistranslocated
Incorrectly moved to a wrong cellular compartment (applied to proteins or RNA).

mittent
Emitting harmful humors.

monoanionic
Having a single negative charge

motherfouler
motherfucker.

mucid
Musty; mouldy; slimy or mucous.
Rotten, bad, worthless.

mustier
comparative form of musty: more musty

naf
Alternative spelling of naff.

naff
Bad; tasteless, poorly thought out, not workable.
Heterosexual.

naffer
comparative form of naff: more naff

naffest
superlative form of naff: most naff

namable
Alternative form of nameable.

nameable
Capable of being distinguished and named; able to be called by a specific name.
Worthy of being named or having a name; significant; memorable (especially in negative expressions).

narkier
comparative form of narky: more narky

narkiest
superlative form of narky: most narky

narky
Irritated, in a bad mood; disparaging.

naughtier
comparative form of naughty: more naughty

naughtiest
superlative form of naughty: most naughty

naughty
Mischievous; tending to misbehave or act badly (especially of a child).
Sexually provocative; now in weakened sense, risqué, cheeky.
Decadent, had as indulgence, especially an unhealthy one.
Evil, wicked, morally reprehensible.
Bad, worthless, substandard.

necessitous
Needy, indigent, destitute, poor.
Lacking; required.
Necessary; unavoidable.

needier
comparative form of needy: more needy

neediest
superlative form of needy: most needy