unadaptable Synonyms

be set in one's ways unbending stubborn stiff steely steadfast single-minded rigorous rigid resolute uncompromising unrelenting wilful be fixed in one's ways close mind against as stubborn as a mule uncompliant stubborn as a mule close one's mind pigheaded unchangeable unyielding relentless refractory recalcitrant hard fixed firm dogged determined contrary bullheaded awkward adamantine headstrong immovable immutable obstinate obdurate mulish intractable inflexible inextensible inelastic inductile implacable adamant