Definition of "listless"

listless

/ˈlɪstləs/

adjective
comparative more listless, superlative most listless
1. Lacking energy, enthusiasm, or liveliness.
  Quotations
  I passed whole days on the lake alone in a little boat, watching the clouds and listening to the rippling of the waves, silent and listless.
  1818, [Mary Shelley], chapter 18, in Frankenstein; or, The Modern Prometheus. […], volumes (please specify |volume=I to III), London: […] [Macdonald and Son] for Lackington, Hughes, Harding, Mavor, & Jones
  What an entirely different set of beings were those Stokesley children in lesson-time. . Poor, listless, stolid, deplorable logs, with bowed backs and crossed ankles, pipy voices and heavy eyes!
  1861, Charlotte M. Yonge, chapter 6, in The Stokesley Secret
  The scene with Mrs. Wallace had broken his spirit, and he was listless now, indifferent to what happened.
  1901, William Somerset Maugham, chapter 21, in The Hero
  “Listless, inattentive, distracted,” he recited. “A daydreamer. Tries his best, but is too slow.”
  2005 November 29, Aryn Baker, “John Hardy: Bali Guy”, in Time