unprofessional

Definitions of unprofessional
  1. adjective
    not characteristic of or befitting a profession or one engaged in a profession
    “described in unprofessional language so that high school students could understand it”
    “was censured for unprofessional conduct”
    unprofessional repairs”
    Synonyms:
    amateur, amateurish, inexpert, unskilled
    lacking professional skill or expertise
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    Antonyms:
    professional
    characteristic of or befitting a profession or one engaged in a profession
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