1. A package or parcel without any label, marking, or identification
The customs officer refused to process the unlabelled package at the border.
O oficial de alfândega recusou-se a processar o pacote sem rótulo na fronteira.
2. In shipping and logistics, a package that lacks required identification tags or documentation labels
All unlabelled packages must be returned to the sender.
Todos os pacotes sem rótulo devem ser devolvidos ao remetente.