fixed

Compared meaning: not moving or not changing (adjective).

比较义项：固定不变、静止不动（形容词）。

• fixed 本词

  Fixed stresses that something has been deliberately set or established so it does not change, often used for prices, rates, ideas, or points; it does not describe physical stillness of a person or animal.

  fixed强调某事物被人为设定或确立后不再改变，常用于价格、利率、观念或位置等，不用来描述人或动物身体上静止不动。

  The interest rate on this loan is fixed for the first five years.

  这笔贷款的利率在头五年内是固定的。

• static

  Static emphasizes a state remaining the same or not developing over time, often for situations, markets, or conditions; it does not typically describe an object that could physically move.

  static强调某种状态或情况长期保持不变、没有发展变化，常用于局势、市场或状况等抽象场合，通常不用来描述可移动物体本身静止不动。

  House prices in this town have remained static for two years.

  这个小镇的房价两年来一直保持不变。

• motionless

  Motionless stresses complete physical stillness with no movement at all, usually describing a person or animal at a particular moment; it does not describe abstract situations that stay unchanged.

  motionless强调身体完全没有任何动作，通常用来描写人或动物在某一时刻一动不动，不用于描述抽象情况保持不变。

  The deer stood motionless in the headlights before darting away.

  那只鹿在车灯前一动不动地站着，随后才飞快跑开。

• stationary

  Stationary describes something, often a vehicle or object, that is capable of moving but is currently not moving, contrasting with a moving state; it is mainly used for physical position rather than abstract change.

  stationary描述本可以移动的事物（常指车辆或物体）此刻并未移动，与运动状态相对，主要用于描述物体的位置静止，而非抽象的变化。

  The car stayed stationary at the red light for over a minute.

  那辆车在红灯前停着不动，超过了一分钟。

Fixed, static, motionless, and stationary all mean not moving or changing. Fixed means deliberately set, like a price. Static means staying the same over time. Motionless means completely still, for a person or animal. Stationary describes something that can move but is not moving now.

这四个词都能表示“不动”或“不变”，但侧重点不同：fixed强调被人为设定后无法更改，static强调状态长期保持不变，motionless强调身体完全静止不动，stationary强调可移动的事物此刻并未移动。这里不比较static作名词表示“（收音机等的）静电噪音”的用法，也不比较fixed表示“被操纵、做了手脚的”（如fixed match）等其他义项。