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unprofessional

[uhn-pruh-fesh-uh-nl]
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adjective
  1. not professional; not pertaining to or characteristic of a profession.
  2. at variance with or contrary to professional standards or ethics; not befitting members of a profession, as language, behavior, or conduct.
  3. not belonging to a profession; nonprofessional.
  4. not done with professional competence, as a play staged or an opera performed by amateurs; amateurish.
  5. Sports. nonprofessional(def 2).
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noun
  1. a person who is not a professional; amateur.
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Origin of unprofessional

First recorded in 1800–10; un-1 + professional
Related formsun·pro·fes·sion·al·ism, nounun·pro·fes·sion·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for unprofessional

negligent, inefficient, improper, ignorant, lax, unethical, incompetent, amateur, amateurish, inadequate, inexperienced, inexpert, unsuitable, untrained, unworthy, unfitting

Examples from the Web for unprofessional

Contemporary Examples of unprofessional

Historical Examples of unprofessional


British Dictionary definitions for unprofessional

unprofessional

adjective
  1. contrary to the accepted code of conduct of a profession
  2. amateur
  3. not belonging to or having the required qualifications for a profession
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Derived Formsunprofessionally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unprofessional

adj.

1806, from un- (1) "not" + professional.

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Online Etymology Dictionary, © 2010 Douglas Harper