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English definition of “unprofessional”


adjective     /ˌʌnprəˈfeʃənəl/
behaving badly at work : an unprofessional attitude Jobs, careers and professionsWorkingBad and wrong behaviourDisobedientObeying and breaking the lawObedient and compliant
(Definition of unprofessional adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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