roughshod vs vicious

roughshod and vicious both are adjectives.

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

As adjectives, roughshod and vicious are synonyms defined as:

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

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

roughshod (adjective)	vicious (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	marked by deep ill will; deliberately harmful
(of a horse) having horseshoes with projecting nails to prevent slipping	having the nature of vice
	bringing or deserving severe rebuke or censure