roughshod (
http://definr.com/roughshod)
adj 1: (of a horse) having horseshoes with projecting nails to
prevent slipping
2: (of persons or their actions) able or disposed to inflict
pain or suffering; "a barbarous crime"; "brutal beatings";
"cruel tortures"; "Stalin's roughshod treatment of the
kulaks"; "a savage slap"; "vicious kicks" [syn:
barbarous,
brutal,
cruel,
fell,
savage,
vicious]
3: unjustly domineering; "incensed at the government's
heavy-handed economic economic policies"; "a manager who
rode roughshod over all opposition" [syn:
heavy-handed]