LOST, participle passive [from lose.] 1. Mislaid or left in a place unknown or forgotten; that cannot be found; as a lost book. 2. Ruined; destroyed; wasted or squandered; employed to no good purpose; as lost money; lost time. 3. Forfeited; as a lost estate. 4. Not able to find the right way, or the place intended. A stranger is lost in London or Paris. 5. Bewildered; perplexed; being in a maze; as, a speaker may be lost in his argument. 6. Alienated; insensible; hardened beyond sensibility or recovery; as a profligate lost to shame; lost to all sense of honor. 7. Not perceptible to the senses; not visible; as an isle lost in fog; a person lost in a crowd. 8. Shipwrecked or foundered; sunk or destroyed; as a ship lost at sea, or on the rocks.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI