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Barbarism
Negative Emotion
Barbarism has a strong negative connotation associated with extreme inhumanity or cruelty. 
Hyperbole Caution
Be cautious using 'barbarism' to exaggerate situations that are simply unpleasant, as it refers to extreme violence or cruelty. 
Historical Usage
'Barbarism' was historically used to label foreign cultures as 'less civilized' - a usage now considered ethnocentric or racist. 