Anew word: unprofessional

unprofessional, adjective, /ˌʌnprə'fɛʃənl/

behaving in a way that is not acceptable in a particular profession.
not having or showing the experience, skill, etc., that is expected or appropriate in a person who is trained to do a job well.

Johnson was fired for unprofessional conduct.

She was accused of unprofessional conduct.

He ran the firm in an unprofessional manner.

Typos look very unprofessional.

— unprofessionally adverb

She acted unprofessionally.

- unprofessionalism, noun, /ˌʌnprəˈfɛʃənəˌlɪzəm/

He was criticized for his unprofessionalism