overgrown
adjective uk/ˌəʊ.vəˈɡrəʊn/ us/ˌoʊ.vɚˈɡroʊn/
(COVERED)
草木丛生的;枝繁叶茂的;（植物）蔓生的
covered with plants that are growing thickly and in an uncontrolled way
The field is overgrown with weeds. 这片地里杂草丛生。
(TOO LARGE)
disapproving长得太大的
used to describe something that has grown too large
Cottonwood has become an overgrown town with inadequate facilities. 科顿伍德已经成了一个人口过多设施不足的镇子。
disapproving, disapproving成年人行为举止像儿童一样的
used to describe an adult who behaves like a child
They're acting like overgrown kids. 他们表现得就像是一群大孩子一样。
UK Jim is just an overgrown schoolboy. 吉姆不过是个大孩子。