adamant

adamant汉语翻译：
n. 坚硬的东西
a. 非常坚硬的, 坚强的, 固执的
【医】 釉质英语解释：
名词 adamant:

very hard native crystalline carbon valued as a gem同义词：diamond

形容词 adamant:

impervious to pleas, persuasion, requests, reason同义词：adamantine, inexorable, intransigent

例句：

He was adamant in his refusal.他拒绝之意极坚持。

I've tried to persuade him to change his mind but he's adamant.我竭力劝他改变主意，但他毫不动摇。

She was quite adamant that she would not come.她坚决不来。

On this point I am adamant.在这一点上我是坚定不移的。