这杯绿茶是我喝过最苦的，几乎难以下咽。

This cup of green tea is the ___bitterest I've ever had, almost undrinkable.

在被解雇后，他处于最愤恨的状态，甚至删除了所有同事的联系方式。

After being fired, he was at his ___bitterest and even deleted all his colleagues' contacts.

我们不得不在这最寒冷的夜晚裹紧毯子取暖。

We had to wrap ourselves tightly in blankets during the ___bitterest night of the year.