adverb [方式副词] 不顾,不加理会;不管怎样,无论如何
If you say that someone did something regardless, you mean that they did it even though there were problems or factors that could have stopped them. 不顾一切地
adjective [原级] 不管的,不注意的
It takes in anybody regardless of religion, colour, or creed. 这个组织接纳任何人,不管其宗教、肤色或信仰。