虽然穿着并不显眼，但是不经意间透露出来的气势，却很难让人能够忽视他的存

虽然穿着并不显眼，但是不经意间透露出来的气势，却很难让人能够忽视他的存在。

Results (English) 1:

Although the clothes are not conspicuous, but the momentum revealed inadvertently makes it difficult for people to ignore his existence.

Results (English) 2:

Although the dress is not conspicuous, but inadvertently revealed momentum, it is difficult to ignore his existence.

Results (English) 3:

Although his clothes are not conspicuous, it is hard for people to ignore his presence because of his inadvertently revealed imposing manner.