Crudely

The detective crudely reconstructed the crime scene, without accounting for all the evidence.

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

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

The crudely written sign was difficult to read from a distance.

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.