unprofessional

adj.

1. 非专业化的, 外行的
   • This patch looks a bit unprofessional.
     这块补丁有点像出自外行之手。
2. 违反职业道德标准的
   • The teacher was dismissed from his post for unprofessional conduct.
     这名教师因其行为违反职业道德而被解职。