反义词是primary，例如：

1、They have been barred from primary bidding for clients.他们被禁止对客户进行最初的投标。

2、What was your primary motivation for making the film?问：你拍这部影片最初的动机是什么

3、But the primary goal of the teen years is to achieve independence.但这个时期的最初的目的只是达到独立。