The meaning of ANNOYING is causing vexation or irritation : causing annoyance : irritating. How to use annoying in a sentence. Definition of annoying adjective in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. What does annoying mean? Annoying is an adjective that’s used to describe someone or something that annoys you—bothers or irritates you .The word implies that the resulting irritation does not rise to the level of serious harm or a major problem—even if someone or something is extremely annoying. Synonyms for ANNOYING : frustrating, irritating, disturbing, aggravating, irksome, exasperating, maddening, bothersome; Antonyms of ANNOYING : delightful, pleasing, obliging, satisfying, gratifying, appeasing, placating, pacifying