(noun, adjective, adverb)


1. affected by an impairment of normal physical or mental function

- ill from the monotony of his suffering

Similar word(s): unfit, unhealthy, afflicted, stricken, aguish, ailing, indisposed, peaked, poorly, seedy, sickly, unwell, airsick, carsick, seasick, autistic, bedfast, bedrid, bedridden, bilious, liverish, livery, bronchitic, consumptive, convalescent, recovering, delirious, hallucinating, diabetic, dizzy, giddy, vertiginous, woozy, dyspeptic, faint, light, lightheaded, swooning, feverish, feverous, funny, gouty, green, nauseated, nauseous, queasy, sick, sickish, palsied, paralytic, paralyzed, paraplegic, rachitic, rickety, scrofulous, sneezy, spastic, tubercular, tuberculous, unhealed, upset, sick

2. resulting in suffering or adversity

- ill effects

- it's an ill wind that blows no good

Similar word(s): harmful

3. distressing

- ill manners

- of ill repute

Similar word(s): bad

4. indicating hostility or enmity

- you certainly did me an ill turn

- ill feelings

- ill will

Similar word(s): hostile

5. presaging ill fortune

- ill omens

- ill predictions

Similar word(s): unpropitious, inauspicious, ominous

Sentences with ill as an adjective:

- He suffered from ill treatment.

- ill manners;

- I've been ill with the flu for the past few days.

- Seeing those pictures made me ill.

- That band was ill.


1. (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well

- he was ill prepared

- it ill befits a man to betray old friends

- ill-fitting clothes

Similar word(s): badly, poorly

2. unfavorably or with disapproval

- tried not to speak ill of the dead

Similar word(s): badly

3. with difficulty or inconvenience; scarcely or hardly

- we can ill afford to buy a new car just now


1. an often persistent bodily disorder or disease; a cause for complaining

Similar word(s): ailment, complaint

Definition categories: state, disorder, upset

Sentences with ill as a noun:

- Music won't solve all the world's ills, but it can make them easier to bear.

- I wouldn't want you to do me ill.

- I am incapacitated by rheumatism and other ills.

- Do not speak ill of the dead.