He painted the room in a haphazard manner.

I found the book in a haphazard manner.

The haphazardness of the situation made it difficult to find a solution.

He packed his suitcase haphazardously.

The haphazardous arrangement of the furniture made the room look messy.

The haphazards of life can sometimes lead to unexpected opportunities.

He haphazardly threw his clothes into the suitcase.

The haphazardry of their actions led to disastrous consequences.

The haphazardries of the situation made it difficult to find a solution.