REFRACTORY
- unruly, stubborn [adj REFRACTORILY] / a stubborn person [n REFRACTORIES]
- Stubborn or unmanageable
- Resistant to a process or stimulus
- (of a person, illness, or diseased tissue) Not yielding to treatment
- (of a person or animal) Resistant to infection
- (of a substance) Resistant to heat; hard to melt or fuse