a.[Z]

1. 無自動力的；無生命的
   Rocks are inert objects.

   石頭是無生命物體。

2. 呆滯的，遲緩的；無生氣的
   He stood inert as the car came towards him.

   汽車朝他開來時，他還呆呆地站著。

3. 【生】【化】惰性的；不活潑的；鈍的
   inert gases

   惰性氣體

adj.

1. lacking the ability or strength to move.
   ▸lacking vigour.
2. chemically inactive.