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WordReference Random House Learner's Dictionary of American English © 2024un•pro•fes•sion•al /ˌʌnprəˈfɛʃənəl/USA pronunciation adj. - against or opposed to professional standards or ethics:unprofessional conduct.
- Show Businessnot done well or with what is considered good, professional quality;
amateurish:a very unprofessional job of redesigning the kitchen.
See -fess-. WordReference Random House Unabridged Dictionary of American English © 2024un•pro•fes•sion•al (un′prə fesh′ə nl),USA pronunciation adj. - not professional;
not pertaining to or characteristic of a profession. - at variance with or contrary to professional standards or ethics;
not befitting members of a profession, as language, behavior, or conduct. - not belonging to a profession;
nonprofessional. - Show Businessnot done with professional competence, as a play staged or an opera performed by amateurs;
amateurish. - Sportnonprofessional (def. 2).
n. - a person who is not a professional;
amateur.
- un-1 + professional 1800–10
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