imperceptible
adj. 感覺不到的; 細微的,逐步的
Something that is imperceptible is so small that it is not noticed or cannot be seen.
Brian's hesitation was almost imperceptible.
布賴恩的猶豫幾乎難以察覺。
1. impossible or difficult to perceive by the mind or senses;
The body ordinarily is constantly shedding imperceptible tiny, thin fragments of stratum corneum.
機體經常不斷地脫落下細小而薄的角質層碎片,幾乎無法察覺.
The difference between the two colors is imperceptible.
這兩種顏色之間的差別很難區別.
The slight change in the taste was imperceptible to most people.
這種味道的細微變化對大多數人而言是無法覺察的.
He gave an almost imperceptible nod.
他略一點頭,別人幾乎無法察覺.
His head moved in an almost imperceptible nod.
他點頭的動作微小得幾乎看不出來.