ultraprofessional

adjective

ul·​tra·​pro·​fes·​sion·​al ˌəl-trə-prə-ˈfesh-nəl 

-ˈfe-shə-nᵊl

: exhibiting an extremely courteous, conscientious, and generally businesslike manner in the workplace : extremely professional

She was ultraprofessional in her business dealings.

ultraprofessionalism

ˌəl-trə-prə-ˈfesh-nə-ˌli-zəm 

-ˈfe-shə-nə-ˌli-

noun

was known for his ultraprofessionalism

Word History

First Known Use

1928, in the meaning defined above