simple past tense and past participle of bad

Something that is bad; a harm or evil. / (slang, with possessive determiner) Error; mistake.

Unfavorable; negative; not good. / Not suitable or fitting. / Not appropriate, of manners etc. / Unhealthy; liable to cause health problems.

(now colloquial) Badly.

(archaic) alternative past of bid. See bade.

Used to scold a misbehaving child or pet.

(Britain, dialect, transitive) To shell (a walnut).

The quality or degree of being bad.

(litotes) Reasonably good.

plural of bad