set in one's ways

unalterable

adamant adamantine determined dogged dyed-in-the-wool firm fixed hard hard-and-fast immovable immutable implacable indomitable inexorable intractable invariable iron ironclad obdurate obstinate relentless resolute rigid rigorous set single-minded stand one's ground staunch steadfast steely stiff strict stringent unadaptable unbending unchangeable uncompliant uncompromising unrelenting unswayable unyielding

adamant adamantine balky brassbound bullheaded cantankerous contumacious cussed determined die-hard dogged firm fixed grim hardheaded headstrong implacable inexorable inflexible insubordinate intractable intransigent iron mulish obdurate opinionated ornery persevering persistent pertinacious perverse pigheaded rebellious recalcitrant refractory relentless remorseless rigid self-willed single-minded steadfast stiff-necked tenacious tough unbendable unbending uncompliant uncompromising unmanageable unreasonable unrelenting unshakable untoward unyielding willful

adamant immutable intractable obstinate resolute rigid rigorous steadfast strict stringent uncompromising unyielding

adamantine determined dogged dyed-in-the-wool firm fixed hang-tough hard hard-and-fast immovable implacable indomitable inexorable iron obdurate relentless set single-minded stand one's ground staunch steely stiff unadaptable unbending unchangeable uncompliant unrelenting unswayable

amenable cooperative easygoing flexible irresolute lenient pliant soft submissive tolerant willing yielding

bendable elastic pliable reasonable resilient

adamant determined dogged headstrong inflexible intractable ornery persistent perverse relentless rigid single-minded steadfast tenacious tough unshakable willful

balky bloody-minded bullheaded cantankerous contumacious cussed firm fixed hang-tough hardheaded inexorable insubordinate mulish obdurate opinionated persevering pertinacious pigheaded rebellious recalcitrant refractory self-willed stiff-necked unbending unmanageable unreasonable untoward

flexible irresolute kind nice pliable pliant reasonable soft submissive surrendering weak willing yielding

broad-minded complacent compliant giving

adamant adamantine balky brassbound bullheaded cantankerous contumacious cussed determined die-hard dogged firm fixed grim hardheaded headstrong implacable incompliant inexorable inflexible insubordinate intractable intransigent iron mulish obdurate opinionated ornery persevering persistent pertinacious perverse pigheaded rebellious recalcitrant refractory relentless remorseless rigid self-willed single-minded steadfast stiff-necked tenacious tough unbending uncompliant uncompromising unmanageable unreasonable unrelenting unshakable untoward unyielding willful

adamant adamantine balky brassbound bullheaded cantankerous contumacious cussed determined die-hard dogged firm fixed grim hardheaded headstrong implacable incompliant inexorable inflexible insubordinate intractable intransigent iron mulish obdurate opinionated ornery persevering persistent pertinacious perverse pigheaded rebellious recalcitrant refractory relentless remorseless rigid self-willed single-minded steadfast stiff-necked tenacious tough unbendable unbending uncompromising unmanageable unreasonable unrelenting unshakable untoward unyielding willful