Crudity

His speech was full of crudity and lacked refinement.

The crudity of the software was evident in its numerous glitches.

The software's user interface had a certain crudity that made it difficult to use.

The engineer's plan was rejected due to the crudity of its design.

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.