The word "barfy" is an informal term that's often used to describe something that's nauseating, unappetizing or unpleasant. When looking for synonyms for "barfy", some common options include "sickly", "upsetting", "revolting", "nauseous", "disgusting", "repulsive", "unpalatable", "vile", "off-putting" and "foul". These terms can be used interchangeably depending on the context and degree of distaste associated with the object or situation. So, if you're looking for ways to describe something that is unappetizing, these synonyms can help you express yourself more accurately and vividly.