(of an action or a decision) intentional or planned, often with the result of being harmful to someone
Bernie made a deliberate attempt to injure Andy.
The deliberate attempt to undermine his colleague's efforts was evident in his actions.
Her deliberate decision to spread false rumors caused unnecessary tension in the workplace.
The deliberate exclusion of certain members from the meeting raised concerns about transparency.
The deliberate delay in responding to the issue only exacerbated the problems within the team.
