bad; poor; undesirable

poor (quality); inferior; insufficient

evil; sinful

ugly; not beautiful

at fault; to blame; in the wrong

bad (at doing something)

unprofitable; unbeneficial

Interjection

sorry; (my) bad; unforgivable

hateful; detestable; abominable; vexing; provoking

amazing; fantastic; admirable; lovely; wonderful

After -masu stem of verb

difficult to ...; hard to ...

Adjectival nouns or quasi-adjectives (keiyodoshi); Nouns which may take the genitive case particle 'no'; Common noun

worst

Colloquial; Adjectival nouns or quasi-adjectives (keiyodoshi); Interjection

horrible; horrid; awful; terrible

Colloquial; Adverb (fukushi)

in the worst case; if worst comes to worst

to hate; to detest

to get worse; to deteriorate; to go from bad to worse; to become worse

to spoil (of food); to go bad; to perish

devil; demon; fiend

Christianity

Satan; the Devil

Buddhism

Māra; evil spirits or forces that hinder one's path to enlightenment

unpleasant; revolting; repulsive; gross; disgusting; disturbing; creepy

feeling sick; feeling unwell

uncomfortable; annoying; frustrating

evil; wickedness

(role of) the villain (in theatre, etc.); the bad guy

Nouns which may take the genitive case particle 'no'

ill will; spite; evil intention; malice

Nouns which may take the genitive case particle 'no'

bad meaning

Law

mala fides; bad faith; criminal intent to deceive

Law

malice