1. An industry or sector of economic activity that is no longer in use, has become outdated, or has been superseded by newer technologies or methods
The typewriter manufacturing industry became an obsolete industry with the rise of personal computers.
A indústria de fabricação de máquinas de escrever tornou-se uma indústria obsoleta com o surgimento dos computadores pessoais.
2. A business sector that has lost relevance in the modern economy due to technological advancement or changing consumer preferences
Coal mining is increasingly considered an obsolete industry in developed nations.
A mineração de carvão é cada vez mais considerada uma indústria obsoleta nas nações desenvolvidas.