pro ‧ fes ‧ sion ‧ al ‧ is ‧ m AC /prəˈfeʃ ə nəlɪz ə m/ BrE AmE noun [uncountable]
[ Word Family: noun : ↑ profession , ↑ professional , ↑ professionalism ; adverb : ↑ professionally , ↑ unprofessionally ; adjective : ↑ professional ≠ ↑ unprofessional ]
1 . the skill and high standards of behaviour expected of a professional person:
the dedication and professionalism of our staff
2 . British English the practice of using professional players in sports:
Professionalism has raised the standard of rugby immensely.