Uncivilized is a related term of pitiless.
As adjectives the difference between uncivilized and pitiless
is that uncivilized
is crude, barbarous, wild, uncultured while pitiless
is having, or showing, no pity; merciless.
Crude, barbarous, wild, uncultured.
Used to describe people who display a marked lack of manners as defined by a given culture.
Used to describe behaviours deemed savage or inappropriate.
having, or showing, no pity; merciless
having no kindly feelings; unkind