tiredness 指“疲劳;倦意;疲惫状态”,既可描述身体上的累,也可指精神上的疲倦。(另有更少见的用法可指“令人疲倦的感觉/状态”。)
/ˈtaɪədnəs/
After the long walk, she felt a deep tiredness.
长途步行后,她感到深深的疲惫。
The tiredness that had built up over weeks made it hard for him to focus, even during important meetings.
数周累积的疲劳让他难以集中注意力,甚至在重要会议中也是如此。
tiredness 来自形容词 tired(疲倦的)+ 名词后缀 -ness(表示“状态、性质”)。因此它字面意思就是“疲倦这一状态”。tired 与古英语/中古英语中表示“耗尽、疲惫”的用法相关,后来逐渐固定为现代英语中“累”的常用表达。