The Great Gatsby, spiritless

Could you please tell me the meaning of "spiritless" in this excerpt from the second chapter of The Great Gatsby?

It had occurred to me that this shadow of a garage must be a blind and that sumptuous and romantic apartments were concealed overhead when the proprietor himself appeared in the door of an office, wiping his hands on a piece of waste. He was a blond, spiritless man, anaemic and faintly handsome. When he saw us a damp gleam of hope sprang into his light blue eyes.