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.

The lack of manners displayed by the guests was considered a crudity by the host.

His crudity in social situations made him feel out of place at the fancy dinner party.

The crudity of his jokes offended many people.

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.