unprofessionally

English

Etymology

From unprofessional +‎ -ly or un- +‎ professionally.

Adverb

unprofessionally (comparative more unprofessionally, superlative most unprofessionally)

1. In an unprofessional manner.
   • 1969, Vladimir Nabokov, Ada or Ardor, Penguin, published 2011, page 27:

     Bouteillan, the old bald butler who unprofessionally now wore a mustache (dyed a rich gravy brown), met him with gested delight [...].