这个顽固的莽汉,不预先考虑,仓促行事.The headstrong impetuous man rushed into things without forethought.他是个顽固的老家伙.He's one Bullheaded old bastard.我不喜欢这些顽固的家伙.I don't like these die - hards....

“顽固的”的英语可以翻译为：stubborn，obstinate，[医] intractable，inflexible，dead-end ...