Definitions of damned:

• noun:   people who are condemned to eternal punishment

  Example: "He felt he had visited the realm of the damned"

• adjective:   in danger of the eternal punishment of hell

  Example: "Poor damned souls"

• adjective:   expletives used informally as intensifiers

  Example: "I'll be damned (or blessed or darned or goddamned) if I'll do any such thing"

• adverb:   in a damnable manner