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English definition of “unprofessional”

unprofessional

adjective     /ˌʌn.prəˈfeʃ.ən.əl/
C1 not showing the standard of behaviour or skill that is expected of a person in a skilled job : Doctor Rivers was charged with unprofessional conduct and improper use of dangerous drugs .Employment status and types of workBad and wrong behaviourDisobedientObeying and breaking the lawObedient and compliant unprofessionally     /-i/ adverb Bad and wrong behaviourDisobedientObeying and breaking the lawObedient and compliant
(Definition of unprofessional adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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