You use hard-headed to describe someone who is practical and determined to get what they want or need, and who does not allow emotions to affect their actions.
例句
...a hard-headed and shrewd businesswoman...务实、精明的女商人They are taking a hard-headed commercial decision.他们正在作出一项清醒冷静的商业决策。
英汉词典释义
adj.
(尤指在做生意时)精明的,讲究实际的;不感情用事的
a hardheaded appraisal of the position对所处形势的实际估计hardheaded intelligence冷静的智慧
英英词典释义
Adjective
1. unreasonably rigid in the face of argument or entreaty or attack
2. guided by practical experience and observation rather than theory;
"a hardheaded appraisal of our position""a hard-nosed labor leader""completely practical in his approach to business""not ideology but pragmatic politics"