adv.断然地；果断地；明确地；毫无疑问

He spoke so decidedly that I dared not question him. 他讲的那么坚决，我不敢质问他。

You must try decidedly even if it is not utterly sure. 即使没有十足把握，也应果断地尝试。

The milk smells/tastes decidedly off. 牛奶闻起来[尝起来]完全变味了。

The conclusion he drew was decidedly wrong. 他做出的结论显然是错的。

I feel decidedly unwell this morning. 我今天上午确实感到不舒服。

That overcoat is looking decidedly past it. 那件大衣看来是绝对旧得穿不出去了。