unprofessional

adjective

un·​pro·​fes·​sion·​al ˌən-prə-ˈfe-sh(ə-)nəl How to pronounce unprofessional (audio)
Synonyms of unprofessionalnext
: not exhibiting a courteous, conscientious, or generally businesslike manner in the workplace : not professional
unprofessional attire
unprofessional comments

Examples of unprofessional in a Sentence

an unprofessional carelessness about the accuracy of the news story
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In late April 2025, the Washington Medical Commission filed administrative charges against Mulholland, accusing him of unprofessional conduct and abuse against three patients, according to records obtained by PEOPLE. Janelle Griffith, PEOPLE, 16 Apr. 2026 Another former aide said that quiet guidance shared among female staffers focused on behavior that is legal, but nevertheless viewed as unprofessional and unbecoming of members of Congress — a line that has prevented many from speaking out publicly. Justine McDaniel, Los Angeles Times, 14 Apr. 2026 Geno Auriemma’s behavior at the women’s Final Four was outrageous and unprofessional. Letters To The Editor, Hartford Courant, 8 Apr. 2026 Production assistants told Albuquerque police that Busfield was sometimes touchy or unprofessional. Anthony Robledo, USA Today, 6 Apr. 2026 See All Example Sentences for unprofessional

Word History

First Known Use

1770, in the meaning defined above

Time Traveler
The first known use of unprofessional was in 1770

Browse Nearby Words

Cite this Entry

“Unprofessional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unprofessional. Accessed 23 Apr. 2026.

Kids Definition

unprofessional

adjective
un·​pro·​fes·​sion·​al
ˌən-prə-ˈfesh-nəl
-ən-ᵊl
: not professional
especially : not up to the standards of one's profession
unprofessionally
adverb
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