Synonyms of the word 
BARBAROUSNESS → ATROCIOUSNESS - ATROCITY - BARBARITY - HEINOUSNESS - INHUMANITY
barbarousness
- n. The state or quality of being barbarous.
atrociousness
- n. the state of being atrocious.
atrocity
- n. (uncountable) The quality or state of being atrocious; enormous wickedness; extreme criminality or cruelty.
- n. (countable) An extremely cruel act; a horrid act of injustice.
barbarity
- n. (uncountable) The state of being barbarous; brutality.
- n. (countable) A barbaric act.
- n. (uncountable) crudity.
- n. (countable) A crude act.
heinousness
- n. The property of being heinous.
inhumanity
- n. The lack of compassion.
- n. An inhuman act.
If you are interested in words, visit the following sites :
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- 1word.ws/barbarousness to play with words, suffixs, prefixs, etc.