A2liked, enjoyed, or supported by many people: She's the most popular teacher in school.That song was popular with people from my father's generation.Walking is a popular form of exercise in Britain.How popular is Madonna among/with teenagers?informalJan wasn't very popular (= people were annoyed by her) when she opened all the windows on that cold day.→ OppositeunpopularLiked, or not liked, by many people