[ uhn-pruh-fesh-uh-nl ]
See synonyms for unprofessional on Thesaurus.com
  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.

  1. not belonging to a profession; nonprofessional.

  2. not done with professional competence, as a play staged or an opera performed by amateurs; amateurish.

  1. a person who is not a professional; amateur.

Origin of unprofessional

First recorded in 1800–10; un-1 + professional

Other words from unprofessional

  • un·pro·fes·sion·al·ism, noun
  • un·pro·fes·sion·al·ly, adverb

Words Nearby unprofessional

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use unprofessional in a sentence

British Dictionary definitions for unprofessional


/ (ˌʌnprəˈfɛʃənəl) /

  1. contrary to the accepted code of conduct of a profession

  2. amateur

  1. not belonging to or having the required qualifications for a profession

Derived forms of unprofessional

  • unprofessionally, 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