nonvolatile

Upper-Intermediate (B2)

IPA: /nɒnˈvɒl.ɪ.təl/

KK: /nɑnˈvɑlɪtəl/

adjective

Definition

Describing something that does not change easily or does not evaporate quickly, often used in the context of data storage that keeps information even when there is no power.

Example

The nonvolatile memory in the device ensures that all data is saved even when it is turned off.

Conversation

I just got a new USB drive that’s nonvolatile.

Oh nice! That means it keeps the data even when it’s unplugged, right?

Exactly! I wanted something reliable for my school projects.

That’s smart. It’s frustrating to lose work because of a faulty drive.

Synonyms & Antonyms

Synonyms

stable

permanent

fixed

Antonyms

volatile

unstable

temporary

Root Explanation

Nonvolatile → It is formed from "non-" (meaning not) and "volatile" (from Latin "volatilis", meaning flying or evaporating). The word "nonvolatile" describes a substance that does not easily evaporate or change into a gas.

Memory Tip

Think of 'non-' meaning 'not' and 'volatile' meaning 'flying away' — so nonvolatile refers to something that does not fly away easily.

Visually Confused Words

unvolatile

involatile