1. to reduce or weaken one's determination, persistence, or commitment to continue despite difficulties
The repeated failures began to diminish his perseverance.
Os fracassos repetidos começaram a diminuir sua perseverança.
2. to cause someone to lose their resolve or tenacity in pursuing a goal
Harsh criticism can diminish a student's perseverance in their studies.
Críticas severas podem diminuir a perseverança de um estudante em seus estudos.