v. Past tense and past participle of lose. adj. Idiom: 1. Unable to find one's way: a lost child. 2. a. No longer in the possession, care, or control of someone or something: a lost pen. b. No longer in existence; vanished or spent: lost youth. c. No longer known or practiced: a lost art. d. Beyond reach, communication, or influence: The expedition was lost to the world for two months. 3. Not used to one's benefit or advantage: a lost opportunity. 4. Having not been or unlikely to be won; unsuccessful: a lost battle; a lost cause. 5. Beyond recovery or redemption; fallen or destroyed: a lost soul. 6. a. Completely involved or absorbed; rapt: lost in thought. b. Bewildered or confused: I'm lost—can you start over? be lost on 1. To have no effect or influence on: Her advice was lost on me. 2. To be beyond the comprehension of: The lecture was lost on us. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.