You searched for: “intractably
intractably (adverb), more intractably, most intractably
1. Concerning how an illness or problem is hard to deal with; unmanageably: The ailment that Martin had was intractably stubborn in healing and took various medications to get it under control.
2. Pertaining to how some people are obstinate or uncontrollable: Tony's sister was so uncooperative, cantankerous, and seemingly intractably difficult at times.