unprofessional
adj. 非专业的，外行的；违反职业道德（或标准）的
例句
He was fired for unprofessional conduct.
他因不专业的操作而被解雇。
《柯林斯英汉双解大词典》
She was found guilty of unprofessional conduct.
她因违反职业道德而被判罪。
《牛津词典》
It's unprofessional to go round criticizing your colleagues.
总是指责同事，这不符合职业道德。
