addled       
adjective uk/ˈæd.əld/ us/ˈæd.əld/
 困惑的,糊涂的
confused and unable to think clearly
  I'm afraid my sun-addled brain couldn't make any sense of the instructions. 恐怕我是被太阳晒糊涂了,我听不懂这些指示。 
 He was so addled by drugs that his crimes could not have been premeditated. 毒品让他头脑混沌,所以他的罪行不可能是有预谋的。 
 See: addle
 - More examples
- He showed no signs of the addled thinking that comes with dementia.
- His brain is so addled that he doesn't know what day it is.
- We loved her for her addled eccentricities.