unprofessional

/ˌʌnprəˈfɛʃənəl/
adjective
  1. Not showing the proper behavior, skills, or standards expected in a job or professional situation.
    • The doctor's unprofessional comments made the patient uncomfortable.
    • Arriving late to the meeting was seen as very unprofessional.
    • Using slang in a formal report looks unprofessional.
  2. Not relating to or done by a trained professional; amateurish.
    • They hired an unplumber who did unprofessional work on the pipes.
    • The unprofessional repair job caused more damage to the roof.
    • Her unprofessional photography skills showed in the blurry pictures.
What does "unprofessional" mean? | whatsthatwordmean | whatsthatwordmean