Crudity

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

His crudity manners were evident from the way he spoke to the waiter at the restaurant.

His crudity at the party offended many guests.

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

The hand-drawn map had a certain crudity charm, with wobbly lines and uneven lettering.