of a horse Having horseshoes with projecting nails to prevent slipping.

of persons or their actions Able or disposed to inflict pain or suffering:
— Stalin's roughshod treatment of the kulaks.

synonyms: barbarous, brutal, cruel, fell, savage, vicious.

Polish: okrutny

Unjustly domineering:
— A manager who rode roughshod over all opposition.

synonym: heavy-handed.