imperceptible

形容詞

1. 1

   察覺不到的、感覺不到的

   The change in temperature was almost imperceptible to us.

   溫度的變化對我們來說幾乎察覺不到。

2. 2

   極微小的、細微的

   She gave an imperceptible nod to signal that we should leave.

   她極輕微地點了個頭，示意我們該走了。