Something that is paramount or of paramount importance is more important than anything else. 首要的
adjective [原级] 至为重要的,首要的;至高无上的,权力最大的
The children's welfare must be seen as paramount. 孩子们的福利必须被视为是最为重要的。
noun [专属名词] 最高统治者
Safety is paramount. 安全至上。