lost

/lɔst/
adjective
  1. Unable to find one's way; not knowing where you are.
    • She felt lost when her phone died and she couldn't use GPS.
    • The hikers got lost in the dense forest and had to use a compass.
    • I was completely lost in the new city without a map.
  2. No longer possessed or retained because it has been taken away, destroyed, or misplaced.
    • He searched everywhere for his lost wallet.
    • The museum displayed artifacts lost for centuries.
    • After the fire, they mourned the loss of lost family photos.
  3. Confused or unable to understand something.
    • She looked lost when the teacher started speaking in French.
    • I'm lost — can you explain that math problem again?
    • The lecture was so technical that most students were lost.
  4. Completely absorbed or focused on something, to the point of being unaware of surroundings.
    • The musician was lost in the melody, eyes closed.
    • He was lost in thought and didn't hear the doorbell.
    • She got lost in the novel and read for hours.
  5. (of time or opportunity) wasted or not used productively.
    • It's a lost cause trying to convince him otherwise.
    • All that waiting was lost time we could have spent working.
    • The delay meant a lost opportunity to win the contract.
Antonyms
verb
  1. Past tense and past participle of lose.
    • She lost her keys somewhere in the house.
    • They lost the game by a single point.
    • He lost his job when the company closed.
Antonyms
What does "lost" mean? | whatsthatwordmean | whatsthatwordmean