Inherently bad or evil; of pernicious quality or character; vicious; wicked; malevolent.Causing evil or harm; baneful; mischievous; pernicious; deleterious: as, it is an ill wind that blows nobody good.Marked or attended by evil or suffering; disastrous; wretched; miserable: as, an ill fate; an ill ending.Of bad import, bearing, or aspect; threatening; forbidding; harsh; inimical: as, ill news travels fast; an ill countenance.In a bad or disordered state morally; unbalanced; cross; crabbed; unfriendly; unpropitious; hostile: as, ill nature; ill temper; ill feeling; ill will.In a disordered state physically; diseased; impaired: as, to be ill of a fever; to be taken ill; ill health.Not proper; not legitimate or polite; rude; unpolished: as, ill manners; ill breeding.Unskilful; inexpert: as, I am ill at reckoning.n. Evil; wrong; wickedness; depravity.n. Misfortune; calamity; adversity; disaster; disease; pain.n. Anything that is discreditable or injurious.Badly; imperfectly; unfavorably; unfortunately.Not easily; with hardship, pain, or difficulty: as, he is ill able to bear the loss.To do evil to; harm; injure.To slander; defame.n. Abbreviations of Illinois.n. Abbreviations of illustrated or of illustration.