Crudely

He crudely estimated the weight of the package, resulting in shipping fees that were too low.

He crudely drew a map for his friend, leading him to get lost on the way.

The technician crudely repaired the machine, resulting in further damage.

The computer program was crudely coded, resulting in frequent crashes and errors.

The driver crudely estimated the distance to the gas station, running out of fuel on the way.

The driver crudely gestured at the other car after they cut him off.

The social media influencer crudely posted explicit photos and videos for shock value.