SAT GRE listless Definition Lacking energy, enthusiasm, or interest. Example "After the long illness, she felt too listless to get out of bed." Sign in to save SAT Quiz → GRE Quiz → ← list literacy → Study tips featuring "listless" Let the Argument Reveal Unfamiliar Word Meanings Group Words Together by Emotional Tone Map the Author's Attitude Before Reading Questions Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal