ichidan verb:

• (for a fruit) to go bad and lose its shape from being overripe or damaged
• to feel listless; to be dull; to be lazy; to look bored

noun:

• bad friend (who leads one away from Buddhism) ➜ 善知識

noun:

• bad habit; evil practices

adjectival noun / noun:

• bad manners; rudeness

expression / adjective:

• bad mannered; naughty; misbehaving

expression / adjective:

• short-tempered; quick-tempered; hasty ➜ 気の早い

expression:

• setting a bad example to others

expression / adjective:

• being dealt a bad hand (in mahjong, card games, etc.) - idiom
• poor (handwriting) - idiom
• unscrupulous - idiom

adjective:

• hot-tempered; quick to take offense; quick to take offence; irascible; touchy

noun:

• bad physician; bad doctor

noun:

• bad bacteria (usu. intestinal bacteria that have an adverse affect on human health - E. choli, C. welchii, etc.); pathogenic bacteria; harmful bacteria

expression / adjective:

• (having) bad marks or results (e.g. in school)
• of poor quality or workmanship

expression:

• a bad wife spells the ruin of her husband; a bad wife means a hundred years of bad luck to her husband

noun:

• (fish) appearing fresh but actually gone bad

noun:

• bad fox - in mythology

expression / adjective:

• bad for the eyes

expression:

• of bad omen; ill augur; boding evil; bad fortune

noun:

• bad health

noun:

• bad ending (in a film, novel, etc.); unhappy ending - From English "bad end"

expression / adjective:

• bad-feeling; disagreeable; unpleasant; revolting; gross; disgusting

expression / adjective:

• having bad breath; having halitosis

expression:

• the good and bad deeds cancel each other out; good deeds make up for the bad - idiom

adjectival noun / noun:

• bad back; spineless person

expression / noun:

• bad weather; nasty weather

expression / noun:

• loving something but being very bad at it - idiom