barbarian

US /bɑːrˈber.i.ən/
UK /bɑːrˈber.i.ən/
"barbarian" picture
1.

a member of a community or tribe not belonging to one of the great civilizations (Greek, Roman, Christian).

:
The Roman Empire eventually fell to the invading barbarians.
Ancient Greeks often referred to non-Greek speakers as barbarians.
2.

a person who is uncivilized, brutal, or cruel.

:
His behavior at the party was absolutely barbarian.
Only a true barbarian would treat animals with such cruelty.
1.

uncivilized, brutal, or cruel.

:
The conquerors committed many barbarian acts against the defeated population.
It was a truly barbarian display of power.