► uglyextremely unattractive, and not nice to look at: Lots of women think John is attractive, but I think he’s ugly. The offices are in the ugliest building in the city.
► unattractive not nice to look at: The concrete building is very unattractive.
► plain not very beautiful or attractive. Used about women or girls: When she was younger, people used to say she was plain, but look at her now – she’s gorgeous.
► homely unattractive or ugly. Used about people: He was a homely but extremely intelligent man.
► unsightly formal an unsightly mark, building, etc. is not pleasing to look at: The illness can cause unsightly marks on the skin.
► hideous extremely ugly in a way that is frightening: The monster had the kind of hideous face that gives children bad dreams.
► grotesque extremely ugly in a way that makes you feel sick: The movie was full of grotesque violence and bloody battles.