Definition of ill

• a. - Contrary to good, in a physical sense; contrary or opposed to advantage, happiness, etc.; bad; evil; unfortunate; disagreeable; unfavorable.
• a. - Contrary to good, in a moral sense; evil; wicked; wrong; iniquitious; naughtly; bad; improper.
• a. - Sick; indisposed; unwell; diseased; disordered; as, ill of a fever.
• a. - Not according with rule, fitness, or propriety; incorrect; rude; unpolished; inelegant.
• n. - Whatever annoys or impairs happiness, or prevents success; evil of any kind; misfortune; calamity; disease; pain; as, the ills of humanity.
• n. - Whatever is contrary to good, in a moral sense; wickedness; depravity; iniquity; wrong; evil.
• adv. - In a ill manner; badly; weakly.