refractory
Pronunciation:
/ɹɪˈfɹæk.təɹ.i//ɹɪˈfɹæk.təɹ.i/noun
Definitions
A material or piece of material, such as a brick, that has a very high melting point.
adjective
Definitions
Obstinate and unruly; strongly opposed to something.
Synonyms:contraryfractiousNot affected by great heat.
Synonyms:fireproofheat-resistantDifficult to treat.
Incapable of registering a reaction or stimulus.