1. Procedures or techniques that are not officially established, standardized, or formally recognized; casual or unofficial approaches to accomplishing tasks
The company uses informal methods to train new employees rather than structured programs.
A empresa utiliza métodos informais para treinar novos funcionários em vez de programas estruturados.
2. Unofficial or non-bureaucratic ways of solving problems or conducting business
They resolved the dispute through informal methods without involving lawyers.
Eles resolveram a disputa através de métodos informais sem envolver advogados.