There are numerous synonyms for the phrase "not feeling well." Some of the common synonyms include, feeling unwell, under the weather, sick, ill, wobbly, poorly, out of sorts, queasy, unsettled, run-down, low, off-color, and peaky. Each of these words describes a different degree or type of discomfort, but all represent a state of physical or emotional unease. Next time you are not feeling your best, try using one of these synonyms to describe your condition to your doctor or loved ones, and see if it helps convey your symptoms more accurately.