lumpenintelligentsia
/ˌlʌmpənˌɪntɛlɪˈdʒɛnsɪə/ /ˌlʌmpənɪnˌtɛlɪˈdʒɛnsɪə/British (depreciative )
noun
A section of the intelligentsia regarded as making no useful contribution to society, or as lacking taste, culture, etc. Also more generally: the intelligentsia collectively, regarded as worthless or powerless.
Origin
1930s. From lumpen- + intelligentsia.