Having a high melting point. Ceramics that are made from clay and minerals are often refractory, as are metal oxides and carbides. Refractory materials are often used as liners in furnaces.
Find another word for unfilial. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for unfilial, like: refractory, disobedient, insubordinate, rebellious and unruly.