1. 无感情的，无感觉的，无动于衷的
2. 无表情的
3. 冷淡的，冷漠的
4. 不动声色的，泰然自若的
5. 呆钝的
6. 冷静的，平静的
7. 无意识的
8. 不感疼痛的，失去知觉的，麻木的
9. 不易受伤害的，不能伤害的
10. 不动的

1. having or revealing little emotion or sensibility; not easily aroused or excited;

   "her impassive remoteness"
   "he remained impassive, showing neither interest in nor concern for our plight"
   "a silent stolid creature who took it all as a matter of course"
   "her face showed nothing but stolid indifference"
   

2. deliberately impassive in manner;

   "deadpan humor"
   "his face remained expressionless as the verdict was read"
   

1.喜怒不形于色的;不露感情的;面无表情的
If someone isimpassive or their face isimpassive, they are not showing any emotion.

e.g. He searched Hill'simpassive face for some indication that he understood...
他盯着希尔毫无表情的面孔，寻找着表明他已明白的些许迹象。
e.g. As the foreman of the jury announced the verdict, Miss Allan remainedimpassive.
陪审团主席宣布裁决时,艾伦小姐一直面无表情。

1. 缺乏热情的：impassion 激动 |impassive 缺乏热情的 | impatience 急躁

2. 冷漠的：impassioned 热烈的 |impassive 冷漠的 |impassively 无感情地

3.

3. 冷漠的,无表情的：immoral 不道德的 |impassive 冷漠的,無表情的 | impure 不純的

4. 无动于衷的,冷漠的：massive 大而重的,魁伟的;大规模的,大量的 |impassive 无动于衷的,冷漠的 | recessive 隐性遗传的,后退的