lost to the world

adjective more lost to the world · most lost to the world

1. idiomatic, not comparable, usually Of a thing, event, etc., no longer used or available; unknown to or forgotten by everyone. [I]t seems this Method is of late grown out of Practice, and so like the melting of Marble and the painting of Glass, ’tis laid aside among the various useful Arts which History tells us are lost to the World.
2. idiomatic, not comparable, usually Of a person, no longer existent, deceased. He was a sympathiser to the poor, the suffering, and the oppressed; and by his death, one of England’s greatest writers is lost to the world.
3. idiomatic, not comparable, usually Of a person, physically located in a remote place where one is unnoticed or incommunicado. Miss Ambient, whom I also saw at intervals during the time that followed, has, with her embroideries and her attitudes, her necromantic glances and strange intuitions, retired to a Sisterhood, where, as I am told, she is deeply immured and quite lost to the world.
4. idiomatic, not comparable, usually Of a person, mentally focused on one's own thoughts or feelings, or on some task, to such a degree that one is unaware of other people or of one's surroundings; unconscious. When he reached the manse he went to his study and took down a bulky volume. […] He remained immersed in its mazes until dawn, struck a new trail of speculation and pursued it like a sleuth hound for the next week, utterly lost to the world, his parish and his family.