"savager" in the adjective sense
1. barbarous, brutal, cruel, fell, roughshod, savage, vicious
of persons or their actions) able or disposed to inflict pain or suffering
"a barbarous crime"
"brutal beatings"
"cruel tortures"
"Stalin's roughshod treatment of the kulaks"
"a savage slap"
"vicious kicks"
2. feral, ferine, savage
wild and menacing
"a pack of feral dogs"
3. barbarian, barbaric, savage, uncivilized, uncivilised, wild
without civilizing influences
"barbarian invaders"
"barbaric practices"
"a savage people"
"fighting is crude and uncivilized especially if the weapons are efficient"-Margaret Meade
"wild tribes"
4. ferocious, fierce, furious, savage
marked by extreme and violent energy
"a ferocious beating"
"fierce fighting"
"a furious battle"
Source: WordNet® (An amazing lexical database of English)
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