But the enemy was coming haphazardly, uncoordinatedly; they had never worked together before, while Ender’s little practice army, though there were only a dozen of them now, knew each other well and knew how to work together.
There are no more uses of "haphazard" in the book.
Show samples from other sources
She seemed to have a most haphazard system of record keeping.
The haphazard manner in which she spent money drove her husband crazy.