Meanings of unworkmanlike in English

An oval or round patch is unworkmanlike and does not wear well.

However unworkmanlike the deed, it had been mercifully done.

It's bad in itself, and so unworkmanlike!

No man ever came back to Marwood and said, "Sir, you broke my neck in an unworkmanlike manner."

They often do not appear until long after the decisions which they chronicle have been made and their general make-up is sometimes unworkmanlike and unscientific.