nonvolatile

/ˌnän-ˈvä-lə-tᵊl/ (ame, mw)

nonvolatile — adjective

  • nonvolatilepositive
  • more nonvolatilecomparative
  • most nonvolatilesuperlative

1. Used for prices, markets, or investments that do not move up and down sharply, s

1.形容詞B2
釋義

Used for prices, markets, or investments that do not move up and down sharply, so the level of risk stays fairly low.

例句

Many older couples choose nonvolatile bond funds for steady monthly income.

collocation: nonvolatile bond fund

After the crash, Hiroko moved her savings into nonvolatile shares.

同義詞
  • stable

    broader term for something steady; 'nonvolatile' focuses more specifically on avoiding sharp price swings

  • steady

    often used for regular income or gradual growth rather than investment risk itself

  • predictable

    focuses on being easy to forecast; something can be predictable without being truly nonvolatile

反義詞
  • volatile

    the direct opposite; prices or markets can rise and fall sharply

  • risky

    broader term for something that may cause losses or uncertainty

文法句型

nonvolatile + fund / asset / share / portfolio

用法筆記

Usually modifies investments, shares, funds, and portfolios. Distinguish from sense 2 and sense 3: this sense is about price movement and risk, not heat or data storage.

常見錯誤

❌This stock is nonvolatile, so it cannot lose money.
✅This stock is relatively nonvolatile, so its price usually changes less.
💡'nonvolatile' suggests smaller swings, not a guaranteed profit.
❌The company wants a nonvolatile worker.
✅The company wants a calm worker.
💡this sense is mainly used for markets and investments, not for describing employees.

2. Describes a liquid or substance that does not turn into vapour quickly at ordina

2.形容詞C1
釋義

Describes a liquid or substance that does not turn into vapour quickly at ordinary temperatures.

例句

The lab used a nonvolatile oil that stayed in the dish overnight.

collocation: nonvolatile oil / solvent

Chemists add a nonvolatile dye so the colour remains after heating.

同義詞
  • low-volatility

    technical phrase for a substance that evaporates slowly; less common in everyday chemistry teaching

  • high-boiling

    more specific; stresses a high boiling point rather than the broader property of resisting evaporation

  • non-evaporative

    technical and less common; close in meaning but rarer than 'nonvolatile'

反義詞
  • volatile

    the direct opposite; a volatile liquid turns into vapour easily

  • evaporative

    emphasises a tendency to evaporate or be lost as vapour

文法句型

nonvolatile + oil / solvent / residue / compound

用法筆記

Used in laboratory and materials writing for liquids, oils, and residues. Distinguish from sense 3: here the word refers to evaporation, not to whether saved data survives without power.

常見錯誤

❌Water is nonvolatile at room temperature.
✅Water evaporates at room temperature, so it is not nonvolatile.
💡a nonvolatile substance does not readily pass into vapour.
❌The battery is nonvolatile.
✅The battery-backed memory keeps data without power.
💡this chemistry sense describes evaporation, not electronics.

3. Describes memory or storage that keeps saved information even after a device is

3.形容詞B2
釋義

Describes memory or storage that keeps saved information even after a device is turned off.

例句

Photos stay on nonvolatile memory even after the camera battery dies.

collocation: nonvolatile memory

The engineer stored the settings in nonvolatile flash before shipping the device.

pattern: store settings in nonvolatile flash

同義詞
  • persistent

    broader computing term for data or settings that remain available after restart or shutdown

  • retentive

    technical term describing a component that holds stored values; less common in everyday computing

反義詞
  • volatile

    the direct opposite; volatile memory loses data when power is removed

文法句型

nonvolatile + memory / storage / flash / RAM

用法筆記

Almost always appears before nouns such as memory, storage, flash, and RAM. Distinguish from sense 2: this sense is about saved information surviving after shutdown, not about liquids resisting evaporation.

常見錯誤

❌Ordinary RAM is nonvolatile, so unsaved work stays after shutdown.
✅Ordinary RAM is volatile, so unsaved work disappears after shutdown.
💡most standard RAM loses data when the power stops.
❌Nonvolatile means the chip never needs updates.
✅Nonvolatile means the chip keeps data without power.
💡the term refers to data retention, not to whether software changes are needed.