To act without care or consideration for others, often using power or authority in a harsh or unfair way.
Roughshod can make people think of being mean or not thinking about others' feelings.
Examples:
He went roughshod over everyone's ideas.
The boss was roughshod and didn't listen to anyone else.
She acted roughshod and hurt people's feelings.
The cat walked roughshod through the house, knocking things over.
The giant walked roughshod through the tiny village, not caring about the houses.
The bully went roughshod over the smaller kids on the playground.