RhymeZone: refractory definitions

Definitions of refractory:

noun: lining consisting of material with a high melting point; used to line the inside walls of a furnace
adjective: not responding to treatment
Example: "A refractory case of acne"
adjective: resistant to authority or control
Example: "As refractory as a mule"
adjective: stubbornly resistant to authority or control
Example: "A refractory child"
adjective: marked by stubborn resistance to and defiant of authority or guidance
Example: "Everything revolves around a refractory individual genius"