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unprofessionalism

American  
[uhn-pruh-fesh-uhn-uhl-iz-uhm] / ˌʌn prəˈfɛʃ ən əlˌɪz əm /

noun

  1. the fact or quality of being unprofessional; substandard behavior, skill, etc., on the part of a professional or other worker.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rodgers proposes another project but warns that he can no longer tolerate Hart’s unprofessionalism: “It’s a business,” he insists, and that means showing up at the office every day ready to work at 9 a.m.

From The Wall Street Journal • Oct. 16, 2025

Fulham left-back Robinson agreed, calling Dest's actions a moment of "unprofessionalism".

From BBC • Nov. 21, 2023

And more than 100 Hollywood publicity firms called on the association to “eradicate the longstanding exclusionary ethos and pervasive practice of discriminatory behavior, unprofessionalism, ethical impropriety and alleged financial corruption.”

From New York Times • Jan. 9, 2023

“The new transition and unprofessionalism of our friends caused it,” said Mujahid, promising the problem will be solved.

From Seattle Times • Oct. 27, 2021

The thought of the false death certificates and burial certificates, and of the unprofessionalism of Darcy, will abrade your legal susceptibilities; but submit to the torture for my sake, Polycarp.

From Hugo A Fantasia on Modern Themes by Bennett, Arnold

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