Crudity

The crudity of the model airplane's design made it difficult to fly.

The customer complained about the crudity of the design of the product.

The amateur carpenter's table had a crudity design, with uneven legs and rough edges.

The cake was a crudity creation, with lumps of frosting and uneven layers.

The gardening project was a crudity mess, with weeds and wildflowers growing haphazardly.