2ADJ-GRADED 为达目的不择手段的;阴险毒辣的;冷酷无情的 If you describe a person or their behaviour as deadly, you mean that they will do or say anything to get what they want, without caring about other people. 为达目的不择手段的;阴险毒辣的;冷酷无情的 [disapproval]
His mother's voice was one he knew; ice cold and deadly.
3ADJ 非常乏味的;极其无聊的 If you describe someone or something as deadly, you mean that you think they are very dull and boring. 非常乏味的;极其无聊的 [informal]
She finds these parties deadly.
她觉得这些聚会无聊极了。
4ADV [ADVERB adjective](尤用于强调令人不快或不受欢迎的特质) 极其,非常 You can use deadly to emphasize that something has a particular quality, especially an unpleasant or undesirable quality. (尤用于强调令人不快或不受欢迎的特质) 极其,非常 [emphasis]
Broadcast news was accurate and reliable but deadly dull.
新闻广播准确可靠但却非常枯燥。
The north wind was bitter and deadly cold.
北风寒冷刺骨。
The United States had been deadly serious in its threat of military action.