brutalism
noun
[ ˈbruːt(ə)lɪz(ə)m ]
• cruelty and savageness.
• "exchanging one kind of social and economic brutalism for another is not what they had in mind"
• a stark style of functionalist architecture, especially of the 1950s and 1960s, characterized by the use of steel and concrete in massive blocks.
• "the long, low, concrete-faced buildings were remarkable solely for their brutalism"