scatty
adjective(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。
Word Originearly 20th cent.: abbreviation of scatterbrained (see scatterbrain).