1. An industry or economic segment that is no longer relevant, productive, or competitive due to technological advancement, market changes, or shifting consumer preferences
The manufacturing sector became obsolete in developed countries after automation and outsourcing.
O setor de manufatura se tornou obsoleto nos países desenvolvidos após a automação e a terceirização.
2. A branch of the economy that has been replaced by newer, more efficient alternatives
The video rental business is now an obsolete sector due to streaming services.
O negócio de aluguel de vídeos é agora um setor obsoleto devido aos serviços de streaming.