— bloody-minded
— bolshie
— bolshy
— bullet-headed
— bullheaded
— cantankerous
— contrarious
— cross-grained
— cussed
— determined
— disobedient
— dogged
— dour
— down-the-line
— hardheaded
— impenitent
— incorrigible
— inflexible
— intractable
— lost
— mulish
— obdurate
— obstinate
— persistent
— pertinacious
— pigheaded
— stiff-necked
— strong-minded
— strong-willed
— stroppy
— sturdy
— tenacious
— uncompromising
— unconverted
— unmerciful
— unorganised
— unorganized
— unoriginal
— unpersuaded
— unreasonable
— unreasoning
— unrecoverable
— unregulated
— unremorseful
— unrepentant
— unreserved
— unresolved
— unresponsive
— unrest
— unrestrained
— unrestraint
— unrestricted
— unworkable
— unyielding