1. A container or parcel that lacks identifying information, markings, or tags
The mysterious package without labels arrived at the warehouse.
O misterioso pacote sem rótulos chegou ao armazém.
2. A product or shipment that has no labeling for contents, sender, or destination information
The customs officer inspected the package without labels to determine its contents.
O oficial de alfândega inspecionou o pacote sem rótulos para determinar seu conteúdo.