1. An outcome or consequence that was not anticipated, predicted, or expected beforehand
The new policy had several unforeseen results that nobody anticipated.
A nova política teve vários resultados inesperados que ninguém havia previsto.
2. An unexpected or surprising outcome of an action, experiment, or decision
The software update produced unforeseen results in system performance.
A atualização do software produziu resultados inesperados no desempenho do sistema.