Synonyms: intractable
Definition: not tractable; difficult to manage or mold
Usage: an intractable disposition; intractable pain; the most intractable issue of our era; intractable metal
Definition: stopping short and refusing to go on
Usage: a balking; a balky mule; a balky customer
Similar words: refractory, stubborn
Definition: not responding to treatment
Usage: a stubborn infection; a refractory case of acne; stubborn rust stains
Similar words: uncontrollable, unmanageable
Definition: difficult to solve or alleviate
Usage: uncontrollable pain
Similar words: unmalleable
Definition: difficult or impossible to shape or work