get lost

WordReference Random House Learner's Dictionary of American English © 2025

lost /lɔst, lɑst/   adj. 

1. no longer possessed:
   [before a noun] lost friendships.
2. no longer to be found:
   lost articles.
3. unable to find one's way:
   There are two lost children at the information booth.
4. not used to good purpose:
   a lost advantage.
5. not won:
   a lost prize.
6. followed by defeat:
   a lost battle.
7. preoccupied:
   [be + ~] He was lost in thought.
8. distraught;
   overwhelmed:
   the lost look of a man trapped.
9. wasted:
   [be + ~ + on + object] Your jokes were lost on him; he has no sense of humor.

v. 

10. pt. and pp. of lose.

Idioms

11. Idioms get lost, [no object] [Slang.]
    • to leave, esp. so as to avoid trouble or conflict:
      Get lost; I'll take care of the boss.
    • to stop being a nuisance:
      If he calls again, tell him to get lost.

WordReference Random House Unabridged Dictionary of American English © 2025

lost  (lôst, lost), adj. 

1. no longer possessed or retained:
   lost friends.
2. no longer to be found:
   lost articles.
3. having gone astray or missed the way;
   bewildered as to place, direction, etc.:
   lost children.
4. not used to good purpose, as opportunities, time, or labor;
   wasted:
   a lost advantage.
5. being something that someone has failed to win:
   a lost prize.
6. ending in or attended with defeat:
   a lost battle.
7. destroyed or ruined:
   lost ships.
8. preoccupied;
   rapt:
   He seems lost in thought.
9. distracted;
   distraught;
   desperate;
   hopeless:
   the lost look of a man trapped and afraid.
10. Idioms get lost, [Slang.]
    • to absent oneself:
      I think I'll get lost before an argument starts.
    • to stop being a nuisance:
      If they call again, tell them to get lost.
11. Idioms lost to:
    • no longer belonging to.
    • no longer possible or open to:
      The opportunity was lost to him.
    • insensible to:
      lost to all sense of duty.

v.t., v.i. 

12. pt. and pp. of lose. 

Synonyms

• 1. forfeited, gone, missing.
• 3. confused, perplexed.
• 4. squandered.

Antonyms

• 1. found.

Collins Concise English Dictionary © HarperCollins Publishers::

lost / lɒst/ adjective

1. unable to be found or recovered
2. unable to find one's way or ascertain one's whereabouts
3. confused, bewildered, or helpless: she felt lost without her sister
4. (sometimes followed by on) not understood, noticed, or taken advantage of (by): rational arguments are lost on them
5. no longer possessed or existing because of defeat, misfortune, or the passage of time: a lost art
6. destroyed physically: the lost platoon
7. (followed by to) no longer available or open (to)
8. (followed by to) insensible or impervious (to a sense of shame, justice, etc)
9. (followed by in) engrossed (in): he was lost in his book
10. damned: a lost soul
11. morally ruined
12. get lost ⇒ (usually imperative) go away and stay away