You use hard-nosed to describe someone who is tough and realistic, and who takes decisions on practical grounds rather than emotional ones. ( INFORMAL )
If nothing else, Doug is a hard-nosed businessman.
= unsentimental
ADJ : usu ADJ n
HARD-NOSED
Meaning of HARD-NOSED in English
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006