다른 것과 혼동할 수 없을 정도로 아주 분명하고 확실하게.
In a way that is very easy to recognize and cannot be confused with anything else.
예문:
"The scent in the air was unmistakably that of fresh pine needles."
"Her handwriting is unmistakably unique, making it impossible to forge."
"The architecture of the building is unmistakably Gothic in style."