nonvolatile

/nɑnˈvɑlətəl/
adjective
  1. Not easily evaporated or changed into a gas at normal temperatures.
    • Nonvolatile oils like olive oil are often used in cooking because they don't evaporate quickly.
    • Unlike alcohol, which evaporates fast, this nonvolatile liquid stays in the bottle for a long time.
    • The chemist stored the nonvolatile compound in a sealed container to prevent any loss.
  2. Describing computer memory that retains data even when the power is turned off.
    • A USB flash drive uses nonvolatile memory, so your files stay safe even without electricity.
    • The engineer explained that nonvolatile memory is essential for saving system settings in a computer.
    • Many modern smartphones rely on nonvolatile storage to keep photos and apps after shutdown.
  3. Not likely to change or fluctuate; stable or enduring.
    • Her nonvolatile personality made her a reliable friend in times of crisis.
    • The company's nonvolatile income from long-term contracts helped it survive the economic downturn.
    • Investors prefer nonvolatile stocks that offer steady returns over time.
Antonyms