a.

1. 非个人的；非特指某一个人的；客观的；事务性的
   He made an impersonal comment on the incident.

   他对那一事件作了客观的评论。

2. 无人情味的，冷淡的
   Don't be so cold and impersonal.

   不要那么冷漠，那么不讲人情。

3. 非人的；不具人格的
   Electricity is an impersonal force.

   电是一种自然力。

4. 【语】非人称的

n.

1. 非人称动词（或代词）[C]

adj.

1. not influenced by or involving personal feelings.
   ▸featureless and anonymous.
2. not existing as a person:
   an impersonal God.
3. Grammar  (of a verb) used only with a formal subject (in English usually it) and expressing an action not attributable to a definite subject (as in it is snowing).