unmistakable

1. ADJ If you describe something as unmistakable, you mean that it is so obvious that it cannot be mistaken for anything else. 不会弄错的

He didn't give his name, but the voice was unmistakable. 他没有给出其名，但其声错不了。

2. unmistakablyADV 不会弄错地

It's still unmistakably a Minnelli movie. 这显然还是一部明尼里电影。

...an unmistakably American accent. …明显的美国口音。