noun
Refers to the conduct, aims, or qualities that characterize a professional person or a profession. Often used in business, sports, and arts contexts.
彼の仕事ぶりにはプロフェッショナリズムが感じられる。
You can sense professionalism in the way he works.
この業界ではプロフェッショナリズムが何よりも重
In this industry, professionalism is more important than anything else.