lumpen
adjective uk/ˈlʌm.pən/ us/ˈlʌm.pən/
(PERSON)
informal disapproving愚蠢的;无知的，没文化的;混日子的
used to describe people who are not clever or well educated, and who are not interested in changing or improving their situation
the lumpen proletariat (= unskilled working people) 流氓无产者
(OBJECT)
disapproving笨重的，粗笨的
heavy and awkward