las·si·tude
noun/ˈlæsɪtjuːd/
/ˈlæsɪtuːd/
[uncountable] (formal)- a state of feeling very tired in mind or body; lack of energy
倦怠；疲乏；无精打采 - I was overcome by lassitude.
我感到疲倦。
Word Originlate Middle English: from French, from Latin lassitudo, from lassus ‘tired’. - I was overcome by lassitude.