unprofessional

English

From un- +‎ professional.

unprofessional (comparative more unprofessional, superlative most unprofessional)

unbecoming of a professional; hence inappropriate in the workplace
unprofessional behavior
- 2017 January 18, Sid Lowe, “Chaos at Mestalla: Valencia's journey from Champions League to utter disarray”, in the Guardian‎^[1]:
  Pitarch went just days after the coach, Cesare Prandelli. A little before Christmas, Prandelli had held a press conference in which he had declined to answer questions and instead delivered a speech one minute 57 seconds long in which he accused his players of being unprofessional.
Lacking a profession.
Not relating to professional occupation or employment; nonprofessional.
- 1913, Norman Lindsay, A Curate in Bohemia, Sydney: N.S.W. Bookstall Co., published 1932, page 89:
  The barber's lad, it appeared, was about to pass a professional judgment on her own, when he was dictatorially ordered by the fur-shop girl to hold what she called his "mug." The barber's lad, who in his unprofessional capacity was the slave of love, showed gloomy allegiance by returning to the shop, where he could be seen peering over the blind with every appearance of contemplating doing something unprofessional with a razor on his own windpipe.

unbecoming of a professional

unprofessional (plural unprofessionals)

One who is not a professional.
- 2011, Jon Sundbo, Marja Toivonen, User-based Innovation in Services, page 59:
  The guests, on the other hand, are unprofessionals, the mere receivers of service, the others. Such is the frame of interaction or the role definitions and how these roles are played out in the service encounters.