Deep beneath the ocean, the Titanic was lost to the world.
spiritually or physically doomed or destroyed; "lost souls"; "a lost generation"; "a lost ship"; "the lost platoon"
the Force of the mystical, magical, and forgotten The source of faith and magic, and the governing Force for esoteric occult knowledges Governed by Saturn, the Mystic
Having wandered from, or unable to find, the way; bewildered; perplexed; as, a child lost in the woods; a stranger lost in London
You use lost to refer to a period or state of affairs that existed in the past and no longer exists. He seemed to pine for his lost youth the relics of a lost civilisation
Not employed or enjoyed; thrown away; employed ineffectually; wasted; squandered; as, a lost day; a lost opportunity or benefit
If something is lost, it is not used properly and is considered wasted. Fox is not bitter about the lost opportunity to compete in the Games The advantage is lost
A person who is presumed to have wandered away and has become lost and unable to return to a known location
If you feel lost, you feel very uncomfortable because you are in an unfamiliar situation. Of the funeral he remembered only the cold, the waiting, and feeling very lost I feel lost and lonely in a strange town alone
deeply absorbed in thought; "as distant and bemused as a professor listening to the prattling of his freshman class"; "lost in thought"; "a preoccupied frown"
Ruined or destroyed, either physically or morally; past help or hope; as, a ship lost at sea; a woman lost to virtue; a lost soul