noncrystalline
Adjective
Meaning
not crystalline
Source: WordNetSynonyms
Antonyms
Examples
A glass is often not understood as a ceramic because of its amorphous (noncrystalline) character.
Noncrystalline opal Two broad categories of noncrystalline opals, sometimes just referred to as "opal-A", have been proposed.
Noncrystalline ceramics Noncrystalline ceramics, being glass, tend to be formed from melts.