imperceptible
🇺🇸
/ˌɪmpərˈseptəbl/
🇬🇧
/ˌɪmpəˈseptəbl/
adjective
R
so small that it's hard to notice or feel
The change in color was so slight that it was almost imperceptible to the naked eye.
색상의 변화가 너무 미묘해서 육안으로는 거의 감지할 수 없었습니다.
translation
감지할 수 없는