The contract terms were pre-negotiated so both parties didn't need to discuss details.

pre-negotiated 是由前缀 pre-（表示"在...之前"）和动词 negotiate（谈判、协商）的过去分词 negotiated 组合而成。pre-negotiated 表示"预先谈判好的、事先协商确定的"。 negotiated 是 negotiate 的过去分词形式，negotiate 来自拉丁语 negotiari，意为"做生意、处理事务"，在现代英语中表示"谈判、协商"。