roughshod vs barbarous

roughshod and barbarous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
roughshod	No	Yes	No	No
barbarous	No	Yes	No	No

As adjectives, roughshod and barbarous are synonyms defined as:

roughshod and barbarous: (of persons or their actions) able or disposed to inflict pain or suffering

Other synonyms of roughshod include brutal, cruel, fell, savage, vicious.

roughshod (adjective)	barbarous (adjective)
unjustly domineering	(of persons or their actions) able or disposed to inflict pain or suffering
(of persons or their actions) able or disposed to inflict pain or suffering	primitive in customs and culture
(of a horse) having horseshoes with projecting nails to prevent slipping