| irretrievable(adjective, severe, fixed, hidden) |
| gone(confused, hidden, lost, desperate) |
| irrecoverable(adjective, severe, hidden, lost) |
| lost(adjective, severe, fixed, confused) |
| absent(confused, hidden, lost, unchangeable) |
| forfeited(confused, hidden, lost, missing) |
| lacking(confused, hidden, lost, unchangeable) |
| adrift(confused, hidden, lost, missing) |
| astray(confused, hidden, lost, unchangeable) |
| at sea(expression, hidden, lost, missing) |
| cast away(expression, hidden, lost, missing) |
| disappeared(confused, hidden, lost, unchangeable) |
| disoriented(confused, hidden, lost, missing) |
| down the drain(expression, idiom, hidden, missing) |
| fallen between cracks(expression, idiom, hidden, missing) |
| forfeit(confused, hidden, lost, missing) |
| gone astray(expression, hidden, lost, missing) |
| hidden(confused, lost, unchangeable, missing) |
| invisible(confused, hidden, lost, unchangeable) |
| kiss goodbye(expression, hidden, lost, missing) |