1. A gradual and continuous decrease or deterioration in quality, health, strength, or performance over time
The patient experienced a progressive decline in cognitive function.
O paciente experimentou um declínio progressivo na função cognitiva.
2. A steady worsening of a condition or situation that occurs in stages
The company faced a progressive decline in sales over the past year.
A empresa enfrentou um declínio progressivo nas vendas ao longo do ano passado.