1. A component, element, or section of an object or system that does not serve a practical purpose or does not work
The decorative molding on the building is a non-functional part that adds aesthetic value.
A moldura decorativa no edifício é uma parte não funcional que adiciona valor estético.
2. In engineering and design, a part that is present but does not contribute to the primary function or operation
The broken dial on the dashboard is a non-functional part that should be repaired.
O mostrador quebrado no painel é uma parte não funcional que deve ser reparada.