The crossword solutions for the term IN BAD HEALTH are ILL, which is an abbreviation for the word 'ILLNESS'. ILLNESS is a general term used to describe any physical or mental condition that causes discomfort, pain, or distress. It can range from minor ailments such as a cold or flu to more serious conditions such as cancer or heart disease. When someone is in bad health, it means they are suffering from a serious ILLNESS or condition that affects their overall wellbeing.