1、warm的反义词是cool。第三人称单数：cools 现在分词：cooling 过去式：cooled 过去分词：cooled 比较级：cooler 最高级：coolest.

2、例句：He was marvelously cool again, smiling as if nothing had happened.

他又变得出奇地冷静，微笑着，好像什么也没有发生过。

3、I didn't like him at all. I thought he was cool, aloof, and arrogant.

我一点也不喜欢他，觉得他冷漠、孤僻而且傲慢。