Gallingly is a word used to describe something that is extremely frustrating or irritating. Synonyms for gallingly include vexatiously, irksomely, annoyingly, exasperatingly, aggravatingly, maddeningly, infuriatingly, and bothersomely. These words express a sense of irritation and a desire for relief from an annoying situation. They are often used to describe events or experiences that cause great frustration. The synonyms for gallingly convey a feeling of being pushed to the limit and wanting to escape a circumstance that is vexing. When something is described as being gallingly frustrating, it means it is causing extreme annoyance or irritation.