adjective / verb HSK 5
Traditional 恆定
constant · stable · invariable · to remain constant
Meaning
恒定 describes something that remains unchanged or stable over time. It emphasizes permanence and lack of variation, commonly used in scientific, technical, and formal contexts to describe constant values, steady states, or unchanging conditions.
Usage
This word appears frequently in scientific and technical writing to describe physical constants, stable conditions, or unchanging parameters. It's more formal than 稳定 (stable) and emphasizes mathematical or physical constancy. Common in phrases like 保持恒定 (to keep constant) or 恒定不变 (constant and unchanging).
Examples
- 01实验要求温度保持恒定。.The experiment requires the temperature to remain constant.
- 02地球自转速度基本恒定。.The Earth's rotation speed is essentially constant.
Characters
Common collocations
- 保持恒定to maintain constant
- 恒定不变constant and unchanging
- 恒定值constant value
- 恒定速度constant speed
Antonyms
Origin
恒 originally meant 'permanent' or 'lasting' (from the heart radical 心 suggesting persistence), while 定 means 'fixed' or 'settled.' Together they reinforce the concept of unchanging permanence.