ill1 Pronunciation: /ɪl/Translate ill | into French | into German | into Italian Spanish translation of illadj 1-er, -est (unwell) enfermo to feel ill = sentirse* mal 2 (bad) (before n) ill effects = efectos (mpl) negativos his ill health = su mala saludill in other Oxford dictionaries Definition of ill in the British & World English dictionary Definition of ill in the US English dictionary