<p><strong>Adjective</strong></p><ul><li>worse</li><li>worst</li><li>of unsound physical or mental health; unwell; sick: She felt ill, so her teacher sent her to the nurse.</li><li>Synonyms: afflicted, diseased, ailing, unhealthy</li><li>Antonyms: healthy</li><li>objectionable; unsatisfactory; poor; faulty: ill manners.</li><li>hostile; unkindly: ill feeling.</li><li>evil; wicked; bad: of ill repute.</li><li>Synonyms: iniquitous, wrong</li><li>Antonyms: good</li><li>unfavorable; adverse: ill fortune.</li><li>of inferior worth or ability; unskillful; inexpert: an ill example of scholarship.</li><li>Slang: great; amazing: His mom is the illest cook.</li></ul><p><strong>Noun</strong></p><ul><li>an unfavorable opinion or statement: I can speak no ill of her.</li><li>harm or injury: His remarks did much ill.</li><li>Synonyms: misery, affliction, pain, hurt</li><li>trouble, distress, or misfortune: Many ills befell him.</li><li>Synonyms: calamity</li><li>evil: to know the difference between good and ill.</li><li>Synonyms: depravity</li><li>sickness or disease.</li><li>Synonyms: affliction, illness</li></ul><p><strong>Adverb</strong></p><ul><li>in an ill manner.</li><li>unsatisfactorily; poorly: It ill befits a man to betray old friends.</li><li>in a hostile or unfriendly manner.</li><li>unfavorably; unfortunately.</li><li>with displeasure or offense.</li><li>faultily; improperly.</li><li>with difficulty or inconvenience; scarcely: Buying a new car is an expense we can ill afford.</li></ul>