Roughshod (adjective)

1. Characterized by rough or heavy-handed treatment or behavior.
2. Acting or done in a harsh or ruthless way.

Origin:

From the phrase "to ride roughshod" meaning to ride over something with rough or heavy shoes or hooves.

Examples:

1. The company's new policy was implemented in a roughshod manner.
2. The government's handling of the situation was roughshod.
3. The manager's behavior was roughshod towards the employees.
4. The team's play was roughshod and undisciplined.
5. The roughshod approach caused a lot of damage.