Main entry: unprofessional
Definition: not characteristic of or befitting a profession or one engaged in a profession
Usage: described in unprofessional language so that high school students could understand it; was censured for unprofessional conduct; unprofessional repairs
Antonyms: professional
Definition: characteristic of or befitting a profession or one engaged in a profession
Antonyms: pro, professional
Definition: an athlete who plays for pay
Antonyms: skilled
Definition: having or showing or requiring special skill