hardheaded

形容词 hardheaded:

1. unreasonably rigid in the face of argument or entreaty or attack
   同义词：mulish
2. guided by practical experience and observation rather than theory
   同义词：hard-nosed, practical, pragmatic

hard.head.ed

adj.（形容词）
Stubborn; willful.
顽固的；任性的
Realistic; pragmatic.
现实的；讲求实际的

【引伸】
hard.head.edly
adv.（副词）
hard.head.edness
n.（名词）