scatty
adjective /ˈskæti/
  /ˈskæti/
(comparative scattier, superlative scattiest)
 (British English, informal)- tending to forget things and behave in a slightly silly way健忘的;傻乎乎的 - My mother is a bit scatty I’m afraid.恐怕我妈妈有点不听话。 
 词源early 20th cent.: abbreviation of scatterbrained (see scatterbrain).
- My mother is a bit scatty I’m afraid.