The constant high-pressure job depersonalized him, making him feel numb and detached from himself.

depersonalized 是动词 depersonalize 的过去式，由前缀 de-（表示"去除"）和 personal（个人的）加上动词后缀 -ize 组成。depersonalize 字面意思是"去除个人特性"，引申为"使失去自我认同感"或"使非人格化"。 在句中，depersonalized 描述高压工作使人逐渐丧失个人特性和自我认同的状态。