| lost(noun, adjective, seek, confused) |
| astray(adjective, seek, confused, hidden) |
| at sea(noun, expression, idiom, hidden) |
| adrift(noun, adjective, confused, hidden) |
| missed(confused, hidden, lost, missing) |
| off-course(adjective, confused, hidden, lost) |
| wandering(confused, hidden, lost, missing) |
| cast away(expression, hidden, lost, missing) |
| disappeared(confused, hidden, lost, unchangeable) |
| down the drain(expression, idiom, hidden, missing) |
| fallen between cracks(expression, idiom, hidden, missing) |
| forfeit(confused, hidden, lost, missing) |
| forfeited(confused, hidden, lost, missing) |
| gone(confused, hidden, lost, missing) |
| gone astray(expression, hidden, lost, missing) |
| hidden(confused, lost, unchangeable, missing) |
| invisible(confused, hidden, lost, unchangeable) |
| irrecoverable(adjective, confused, hidden, lost) |
| irretrievable(adjective, confused, hidden, lost) |
| irrevocable(confused, hidden, lost, missing) |