1. purposeless Faint, with the general sense of lacking strength or effectiveness, covers a wide range of meaning, signifying overcome with physical weakness or exhaustion, or lacking in purpose, courage, or ener Synonyms: faint, dim, fatigued, irresolute, weak, exhausted, feeble, languid, wearied, faded, half-hearted, listless, worn, faint-hearted, ill-defined, purposeless, worn down, faltering, indistinct, timid, worn out Antonyms: bright, clear, daring, fresh, resolute, sturdy, brilliant, conspicuous, energetic, hearty, strong, vigorous
Synonyms for purposeless 
