1. An unexpected or unplanned delay in a process, service, or activity that was not previously scheduled or anticipated
The flight experienced an unscheduled wait due to mechanical issues.
O voo sofreu uma espera não programada devido a problemas mecânicos.
2. A period of waiting time that occurs outside of normal operational plans or timetables
Customers complained about the unscheduled wait at the service center.
Os clientes reclamaram da espera não programada no centro de atendimento.