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Use "unprofessionally" in a sentence
"However, a second soldier who fired while also claiming to feel threatened was found to have acted "unprofessionally" and would be discharged, the army said."
"As we all know, nobody ever links to you when you get things wrong or act "unprofessionally" one mans professional is another man's quack -- HA"
"Reilly later said he regretted acting "unprofessionally" but was "sickened" by Harper's comments and signs."