1. A method, procedure, or skill that is no longer in use or considered outdated due to technological advancement or better alternatives
Typewriter maintenance is now an obsolete technique in most modern offices.
A manutenção de máquinas de escrever é agora uma técnica obsoleta na maioria dos escritórios modernos.
2. A practice or approach that has been superseded and is rarely applied in contemporary practice
Film development is considered an obsolete technique by digital photographers.
A revelação de filmes é considerada uma técnica obsoleta pelos fotógrafos digitais.