mumsy
adjective UK informal disapproving uk/ˈmʌm.zi/ us/ˈmʌm.zi/
（女性外表）不时髦的，落伍的
A mumsy woman has an old-fashioned appearance, like that of a traditional mother.
As she became more successful, she changed her mumsy hairstyle for something more glamorous. 随着事业上的不断成功，她一改落伍的发式，变得更有魅力了。