refractory
1. [ adjective ] resistant to authority or control
Examples:

"as refractory as a mule"

Related terms: uncooperative
2. [ adjective ] marked by stubborn resistance to authority
Synonyms: recalcitrant
Examples:

"the University suspended the most recalcitrant demonstrators"

Related terms: intractable defiant
3. [ adjective ] stubbornly resistant to authority or control
Synonyms: fractious
Examples:

"a fractious animal that would not submit to the harness" "a refractory child"

Related terms: disobedient
4. [ adjective ] (medicine) not responding to treatment
Synonyms: stubborn
Examples:

"a stubborn infection" "a refractory case of acne"

Related terms: medicine intractable
5. [ adjective ] marked by stubborn resistance to and defiant of authority or guidance
Synonyms: recalcitrant
Examples:

"a recalcitrant teenager" "everything revolves around a refractory individual genius"

Related terms: intractable defiant
6. [ noun ] lining consisting of material with a high melting point; used to line the inside walls of a furnace
Synonyms: furnace_lining
Related terms: lining alumina fireclay
Similar spelling:   refract
  refractometer
  refractivity
  refracture
  refractive
  refraction
  refractile
  refrigerator
  repressor