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Synonyms

lost

American  
[lawst, lost] / lɔst, lɒst /

adjective

  1. no longer possessed or retained.

    lost friends.

    Synonyms:
    past, former
  2. no longer to be found.

    lost articles.

  3. having gone astray or missed the way; bewildered as to place, direction, etc..

    lost children.

    Synonyms:
    missing, absent
  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.


verb (used with or without object)

  1. simple past tense and past participle of lose.

idioms

  1. get lost,

    1. to absent oneself.

      I think I'll get lost before an argument starts.

    2. to stop being a nuisance.

      If they call again, tell them to get lost.

  2. lost to,

    1. no longer belonging to.

    2. no longer possible or open to.

      The opportunity was lost to him.

    3. insensible to.

      lost to all sense of duty.

lost British  
/ 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

    he is lost in discussions of theory

  4. (sometimes foll by on) not utilized, noticed, or taken advantage of (by)

    rational arguments are lost on her

  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. (foll by to) no longer available or open (to)

  8. (foll by to) insensible or impervious (to a sense of shame, justice, etc)

  9. (foll by in) engrossed (in)

    he was lost in his book

  10. morally fallen

    a lost woman

  11. damned

    a lost soul

  12. informal (usually imperative) go away and stay away

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lost More Idioms  

Other Word Forms

Etymology

Origin of lost

First recorded in 1530–40, for the adjective

Explanation

The adjective lost describes anything that can't be found, like your favorite pair of sunglasses that you left on a table at the library and never saw again. Beloved hand-knit scarves can be lost, and so can wandering pet goats. A person can get lost in the unfamiliar, winding streets of a strange city. You can also describe someone as lost if they're confused or desperately in need of some kind of help. The origins of the word lost come from the Proto-Indo-European leu, "to loosen, untie, or separate". The meaning "to be defeated," like when you've lost a game or lost a battle, came later, around 1530.

Keep Reading on Vocabulary.com

Vocabulary lists containing lost

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Fear of widespread jobs lost to AI remain just fears; unemployment is actually pretty low.

From The Wall Street Journal • May 29, 2026

The City of Angels lost nearly 10,000 residents last year.

From Los Angeles Times • May 29, 2026

Despite a surge in funding at the end to circulate his countermessaging, Roy lost to Middleton by 10 points Tuesday night.

From Salon • May 29, 2026

To have a company that has lost more than $8.5 billion over the past three years potentially carry a valuation north of $1.5 trillion certainly defies typical valuation metrics.

From Barron's • May 29, 2026

I had not cried the night of the invasion but I cried now, for our country was lost.

From "The Hiding Place" by Corrie ten Boom

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