1. A defective or substandard completion of a surface, product, or task that does not meet required standards or specifications
The inspector rejected the furniture due to improper finish on the wooden surface.
O inspetor rejeitou o móvel devido ao acabamento inadequado na superfície de madeira.
2. In manufacturing or construction, a completion that fails to meet quality expectations or aesthetic requirements
The wall painting showed improper finish with visible brush strokes and uneven color.
A pintura da parede apresentava acabamento inadequado com marcas visíveis de pincel e cor desigual.