Bad (băd), a. [Compar.Worse (wûs); superl.Worst (wûst).] [Probably fr. AS. bæddel hermaphrodite; cf. bædling effeminate fellow.] Wanting good qualities, whether physical or moral; injurious, hurtful, inconvenient, offensive, painful, unfavorable, or defective, either physically or morally; evil; vicious; wicked; — the opposite of good; as, a bad man; bad conduct; bad habits; bad soil; bad air; bad health; a bad crop; bad news.
Sometimes used substantively.
The strong antipathy of good to bad.
Pope.
Syn. — Pernicious; deleterious; noxious; baneful; injurious; hurtful; evil; vile; wretched; corrupt; wicked; vicious; imperfect.