adj.冷淡的，冷漠的，无情的

His performance on stage was passionless, leaving the audience unimpressed.
他的舞台表演缺乏激情，让观众觉得平淡无奇。
The professor delivered a lecture in a passionless tone, which made it hard for students to stay engaged.
教授用一种无激情的语调讲课，使得学生们很难保持注意力集中。
The passionless kiss was a clear sign that their relationship had lost its spark.
那次没有感情的亲吻清楚地表明他们的关系已经失去了火花。
She went through the motions of her daily routine with a passionless efficiency.
她以一种缺乏热情的效率执行着日常任务。
The passionless art exhibit failed to evoke any emotional response from the visitors.
那场缺乏激情的艺术展览未能激发参观者的情感共鸣。
He wrote a letter to his partner, expressing his concern in passionless words.
他给伴侣写了一封信，用冷漠的字眼表达了他的担忧。
The passionless debate on the topic showed how little interest the participants had in it.
关于该主题的冷漠辩论显示了参与者对此有多么缺乏兴趣。
Despite the stunning view, she observed it with a passionless detachment.
尽管景色令人惊叹，她却以一种冷漠的态度观察它。
The passionless manager's leadership style resulted in a demotivated team.
这位缺乏热情的经理的领导风格导致团队士气低落。
In her passionless voice, she announced the end of their long-term relationship.
她用冷漠的声音宣布了他们长期关系的结束。