- Obsolete foreign or alien; in the ancient world, non-Greek, non-Roman, or non-Christian
- characterized by substandard usages in speaking or writing
- characteristic of barbarians; primitive or lacking in civilization
- uncultured, crude, coarse, rough, etc.
- cruel; brutal
- harsh in sound; raucous
L barbarus < Gr barbaros, foreign, strange, ignorant < IE echoic base *barbar-, used for unintelligible speech of foreigners > Sans barbara-, stammering, non-Aryan