Antonyms for "are ill with" refer to the opposite meaning of this phrase, indicating a healthy state of being. Some antonyms that come to mind include "are healthy," "are well," "are fit," and "are in good health." These antonyms suggest a positive outlook towards one's physical wellbeing and depict a sound condition of the body. Being in good health means not having any ailment, illness or disease to impact the body and mind. It helps to live life to the fullest, enjoy everyday activities, and maintain an active routine. Hence, it is essential to strive for good health, eat healthily, exercise regularly, and seek medical attention when required.