Crudity

The lack of refinement in his behavior indicated a certain crudity.

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

The lack of research in the student's paper resulted in a crudity of content.

His crudity in using derogatory terms made everyone uncomfortable.

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

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