very wicked or cruel

outrageous; widely condemned

(of a person, behaviour, thought) dishonourable; immoral

vulgar, low

of a crime

lawless, felonious

(of a person) filled with despair and ready to do anything regardless of danger

reckless, outrageous

having or producing a bad reputation

dishonorable, lowly

(of a crime etc) openly and obviously wicked

flaunting, blatant; without shame

causing disgust; having a bad smell or taste; very bad and strong

disgusting, dirty

(of a crime) extremely bad

horrifying, monstrous

causing extreme disgust, fear etc

unpleasant

wicked (the more usual word)

not religious

wicked; shameful; disgraceful

shameful, bad in reputation

likely to cause anger, envy, jealousy, (because of real or apparent injustice)

hateful

indecent; showing, having, lust

vulgar, indecent

of a large size and strange shape; causing horror and disgust

unnatural, shocking

well-known (especially for something bad)

known for a trait

shocking; offensive; far too large or extravagant

very bad

using rude and strong words of abuse

foul-mouthed, vulgar

very bad or wrong; causing shock; severe

outrageous; very surprising

so bad etc that it must not be spoken of

unspeakable

not caring about being honest or doing wrong

immoral

wicked

criminal

(of a person, behaviour) wrong; immoral; very bad; mischievous

corrupt, bad