Spiritless, a.
1. Destitute of spirit; wanting animation; wanting cheerfulness; dejected; depressed.
2. Destitute of vigor; wanting life, courage, or fire. A men so faint, so spiritless, So dull, so dead in lock, so woebegone. Shak.
3. Having no breath; extinct; dead. "The spiritless body." Greenhill. -- Spir"it*less*ly, adv. -- Spir"it*less*ness, n.
Shades of meaning
Fernald lists spiritless only as an antonym, under alive.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given