address unknown
Can't be found
Address unknown is a postal notation indicating mail cannot be delivered because the recipient's location is unverified or nonexistent.
It appears stamped or written on returned mail: The letter came back marked address unknown.
The phrase extends to situations where someone has vanished or become unreachable: He left town years ago—address unknown.
- undeliverableCannot be sent
- lostUnable to navigate
- missingNot present, whereabouts unknown
- forwardingRedirecting to another location
- mailboxContainer for delivered mail
envelope · postmark · stranger · mystery · homeless · wandering · departed · relocated · moved away · untraceable · postal · dead letter · nowhere · vanished · searching · skip town · forgotten · anonymous
- undeliverable maildead letter, undeliverable mail, return to sender, lost mail, insufficient postage
- shipping statusdelivered, in transit, out for delivery, shipped, pending
address unknowndelivered
Brought to recipient
received · signed for · forwarding address · traceable · locatable
address, addresses, addressed, addressing, addressee, addressees, unknown, unknowns, know