Definitions of ugly:

• adjective:   deficient in beauty

  Example: "Ugly gray slums"

• adjective:   displeasing to the senses and morally revolting

  Example: "An ugly face"

• adjective:   morally reprehensible

  Example: "Ugly crimes"

• adjective:   inclined to anger or bad feelings with overtones of menace

  Example: "An ugly frame of mind"

• adjective:   provoking horror

  Example: "An ugly wound"

• adjective:   threatening or foreshadowing evil or tragic developments

  Example: "Ugly black clouds"