The phrase "badly off" means to be in a poor or unfavorable condition. The antonyms for this phrase would be "well-off", "prosperous", "blessed", "fortunate", or "wealthy". If someone is doing well or thriving financially, emotionally, or physically, they can be described as being "well-off". Alternatively, someone who is in good health, happy, and have a great support system can be considered "blessed". These antonyms can help to highlight the opposite of being "badly off" and demonstrate that there are different levels of success and well-being.