imperceptible
/ˌɪmpərˈseptɪbəl/
American
- adj. 难以察觉的, 微小的
- Definition
- adj. so slight or small that it is very hard to notice
- Example
- The change in temperature was so imperceptible that nobody noticed it.
- 气温的变化十分微小，几乎没人察觉到。