1. A transformation or alteration that results in a worse condition, decline, or deterioration
The negative change in the company's performance led to layoffs.
A mudança negativa no desempenho da empresa levou a demissões.
2. An unfavorable shift in circumstances, behavior, or conditions
There has been a negative change in his attitude since the incident.
Houve uma mudança negativa na sua atitude desde o incidente.