As nouns the difference between savagery and brutalism
is that savagery is the status of being savage while brutalism is (architecture) a style of modernist architecture characterized by angular geometry and overt signs of the construction process.
savagery
English
Noun
(savageries)
the status of being savage
a violent act of cruelty
savage or brutal behaviour; barbarity
brutalism
English
Noun
Brutal, violent behaviour; savagery.