hardheaded (adj.)

• balking
• balky
• bigoted
• bullheaded
• case-hardened
• dogged
• dogmatic
• down-to-earth
• earthy
• fanatic
• hard
• hard-boiled
• headstrong
• intolerant
• matter-of-fact
• mulish
• obstinate
• opinionated
• overzealous
• persevering
• pertinacious
• pigheaded
• positivistic
• practical
• pragmatic
• rational
• realistic
• reasonable
• restive
• sane
• scientific
• secular
• self-willed
• sensible
• set
• sober
• sophisticated
• sound
• stiff-necked
• strong-willed
• stubborn
• sulky
• sullen
• tenacious
• tough-minded
• uncooperative
• unregenerate
• unromantic
• unsentimental
• willful
• wise
• worldly