lost

1 of 2

past tense and past participle of lose

lost

2 of 2

adjective

ˈlȯst 

1

: not made use of, won, or claimed

a lost opportunity

2

a

: no longer possessed

a lost reputation

b

: no longer known

a lost tunnel

3

: ruined or destroyed physically or morally : desperate

a lost soul

4

a

: taken away or beyond reach or attainment : denied

regions lost to the faith

b

: insensible, hardened

lost to shame

5

a

: unable to find the way

b

: no longer visible

lost in the crowd

c

: lacking assurance or self-confidence : helpless

lost without his glasses

6

: rapt, absorbed

lost in reverie

7

: not appreciated or understood : wasted

Their jokes were lost on me.

8

: obscured or overlooked during a process or activity

lost in translation

9

: hopelessly unattainable : futile

a lost cause

lostness

ˈlȯs(t)-nəs 

noun

Synonyms

Adjective

• gone
• mislaid
• misplaced
• missing

Examples of lost in a Sentence

Adjective

He was looking for his lost keys.

Many have tried to find the ruins of the lost city.

We took a wrong turn and got lost.

Hold my hand. I don't want you to get lost.

He has been trying to recapture his lost youth.

The original music is lost to us forever.

Recent Examples on the Web

Adjective

The bottom line is that in an industry driven by innovation, some of the biggest costs come in the form of lost opportunities. —Alex Knapp, Forbes, 19 Dec. 2024

Mayfield’s interception and a lost fumble by Rachaad White helped the Chargers build a 17-10 lead. —Rick Stroud, Orlando Sentinel, 16 Dec. 2024

But there's nothing worse than wasting time looking for a lost set of keys, your wallet, or your phone. —Juhi Wadia, PCMAG, 16 Dec. 2024

The moon’s clash with Venus inclines you to wallow over lost or unrequited love. —USA TODAY, 11 Dec. 2024

Word History

Etymology

Adjective

past participle of lose

First Known Use

Adjective

14th century, in the meaning defined at sense 3

Phrases Containing lost

• get lost
• give (someone) up for lost
• he who hesitates is lost
• long-lost
• lost and found
• lost art
• lost cause
• lost for words
• lost in the mail
• lost in the mists of time
• lost in the shuffle
• lost in thought
• lost my train of thought
• lost on
• lost soul
• lost the initiative
• lost touch with reality
• lost wax
• make up for lost time
• no love lost
• very little love lost

Kids Definition

lost

adjective

ˈlȯst 

1

: not used, won, or claimed

lost opportunities

2

: no longer possessed or known

a long lost uncle

3

: ruined or destroyed physically or morally

4

: unable to find the way

a lost puppy

5

: having the mind absorbed and not aware of surroundings

lost in daydreams

6

: futile

a lost cause

Legal Definition

lost

adjective

1

: not made use of, won, or claimed

lost opportunity costs

2

: unintentionally gone out of or missing from one's possession or control

3

: ruined or destroyed physically

also : in an unknown physical condition or location

a lost ship