a.

1. 中立的；中立國的；中立地帶的
   He remained neutral during the debate.

   他在辯論中保持中立。

2. 不確定的，模糊的
   I waited, but her eyes were neutral.

   我等著她的反應，但她的眼睛沒有露出情感有什麼變化。

3. 非彩色的，略帶灰色的
   White is a neutral color.

   白色是中性色。

   The water was of a pale, neutral color.

   這水是一片淡灰色。

4. 【化】中性的
   It is a neutral salt.

   這是一種中性鹽。

5. 【物】不帶電的
   Cut back the covers of the neutral and live wires about one inch.

   將帶電和不帶電的電線頭上的包皮割去約一英寸。

6. 【生】無性的
7. 【機】空檔的

n.

1. 中立者，中立國[C]
2. 非彩色[U][C]
3. 【機】空檔[U]
   When you start the car, make sure it is in neutral.

   確定在空檔才發動車子。

   He pushed the handle into neutral.

   他將手柄扳到空擋。

adj.

1. not supporting either side in a conflict or dispute; impartial.
   ▸belonging to an impartial state or group.
2. dispassionate or inoffensive.
3. of or denoting a pale grey, cream, or beige colour.
4. Chemistry  neither acid nor alkaline; having a pH of about 7.
5. electrically neither positive nor negative.

n.

1. an impartial state or person.
2. a neutral colour or shade.
3. a disengaged position of gears.
4. an electrically neutral point, terminal, etc.