1. A different or substitute approach, technique, or procedure used instead of the conventional or traditional one
The teacher used an alternative method to explain the complex concept.
A professora usou um método alternativo para explicar o conceito complexo.
2. An unconventional or innovative way of accomplishing a task or achieving a goal
They adopted an alternative method to reduce production costs.
Eles adotaram um método alternativo para reduzir os custos de produção.