Meaning : Unreasonably rigid in the face of argument or entreaty or attack.
Synonyms : mulish
Meaning : Guided by practical experience and observation rather than theory.
							Example : 
							A hardheaded appraisal of our position.
							A hard-nosed labor leader.
							Completely practical in his approach to business.
							Not ideology but pragmatic politics.
							
Synonyms : hard-nosed, practical, pragmatic