adjective
Not showing the behavior, skill, or appearance expected in a professional situation.
His unprofessional behavior made the client lose confidence in the company.
Common phrases & grammar
unprofessional behavior · unprofessional conduct
American English
How to pronounce unprofessional
adjectiveB2
uhnpruhFEHshuhnl
/ˌən.pɹəˈfɛ.ʃə.nl̩/
5 syllables · Stress the third syllable.
Not showing the behavior, skill, or appearance expected in a professional situation.
Practice out loud