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.
Some of the charges stem from the Pennsylvania Board of Vehicles Act for substantial misrepresentation of material facts in a vehicle sale, unprofessional conduct, and willful failure to display his dealership license. Michael Guise, CBS News, 25 Feb. 2026 Production assistants told Albuquerque police that Busfield was sometimes touchy or unprofessional. Anna Kaufman, USA Today, 18 Feb. 2026 The unprofessional outburst hung in the dugout air as the Phillies finished a win without Castellanos. Matt Gelb, New York Times, 12 Feb. 2026 That does not mean individual employees are necessarily unprofessional or malicious. James Broughel, Forbes.com, 30 Jan. 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 4 Mar. 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
Last Updated: - Updated example sentences
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