noncrystalline

/ˌnɑnˈkrɪstəlaɪn/
adjective
  1. Not having the structure of a crystal; not made of crystals.
    • The scientist studied the noncrystalline regions of the polymer to understand its flexibility.
    • The glass is noncrystalline, which makes it transparent and easy to shape.
    • Some minerals are noncrystalline and form without a regular geometric pattern.
Antonyms
What does "noncrystalline" mean? | whatsthatwordmean | whatsthatwordmean