Synonyms: furnace lining, refractory
Definition: lining consisting of material with a high melting point; used to line the inside walls of a furnace
Synonyms: fractious, recalcitrant, refractory
Definition: stubbornly resistant to authority or control
Usage: a fractious animal that would not submit to the harness; a refractory child
Similar words: disobedient
Definition: not obeying or complying with commands of those in authority
Usage: disobedient children
Synonyms: refractory
Definition: temporarily unresponsive or not fully responsive to nervous or sexual stimuli
Usage: the refractory period of a muscle fiber
Similar words: unresponsive
Definition: not responding to some influence or stimulus
Synonyms: refractory, stubborn
Definition: not responding to treatment
Usage: a stubborn infection; a refractory case of acne; stubborn rust stains
Similar words: intractable
Definition: not tractable; difficult to manage or mold
Usage: an intractable disposition; intractable pain; the most intractable issue of our era; intractable metal