lost
Americanadjective
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no longer possessed or retained.
lost friends.
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no longer to be found.
lost articles.
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having gone astray or missed the way; bewildered as to place, direction, etc..
lost children.
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not used to good purpose, as opportunities, time, or labor; wasted.
a lost advantage.
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being something that someone has failed to win.
a lost prize.
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ending in or attended with defeat.
a lost battle.
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destroyed or ruined.
lost ships.
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He seems lost in thought.
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distracted; distraught; desperate; hopeless.
the lost look of a man trapped and afraid.
verb (used with or without object)
idioms
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get lost,
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to absent oneself.
I think I'll get lost before an argument starts.
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to stop being a nuisance.
If they call again, tell them to get lost.
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lost to,
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no longer belonging to.
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no longer possible or open to.
The opportunity was lost to him.
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insensible to.
lost to all sense of duty.
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adjective
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unable to be found or recovered
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unable to find one's way or ascertain one's whereabouts
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confused, bewildered, or helpless
he is lost in discussions of theory
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(sometimes foll by on) not utilized, noticed, or taken advantage of (by)
rational arguments are lost on her
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no longer possessed or existing because of defeat, misfortune, or the passage of time
a lost art
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destroyed physically
the lost platoon
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(foll by to) no longer available or open (to)
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(foll by to) insensible or impervious (to a sense of shame, justice, etc)
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(foll by in) engrossed (in)
he was lost in his book
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morally fallen
a lost woman
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damned
a lost soul
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informal (usually imperative) go away and stay away
Other Word Forms
Derived 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.
Vocabulary lists containing lost
"Brothers in Hope"
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Unit 8
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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.
Both shows won two awards, as did musical The Lost Boys, the punk-rock adaptation of the 1987 cult vampire film.
From BBC • Jun. 8, 2026
The Lost Tour is Bridgers’ first full-band solo tour since Reunion Tour in support of her 2020 album “Punisher” wrapped in April 2023, though she has since toured as a member of the supergroup Boygenius.
From Los Angeles Times • Jun. 5, 2026
For the Lost Tour, Bridgers will donate $1 from every ticket sold for North American concerts to RAINN, the nation’s largest anti-sexual violence organization and operator of the National Sexual Assault Hotline.
From Los Angeles Times • Jun. 5, 2026
These men are the focus of a new documentary, Lost Down Mexico Way, bringing the extraordinary story of these football fans to life, 40 years after it all started.
From BBC • Jun. 1, 2026
Lost in the solitude of his immense power, he began to lose direction.
From "One Hundred Years of Solitude" by Gabriel Garcia Marquez
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
