English Reference

Word

unaltered

Phoneticsun·al·tered, stress on the second syllable

US/əˈnɔɫtɝd/

UK/ʌnˈɒltəd/

Definition

adj. not changed at all. You use this to describe something that stays exactly the same as it was before.

adj. not changed or modified in any way. Often used to describe data, physical objects, or states that remain in their original condition.

Examples

“The old house remains in its unaltered state.”

“The software ensures that the original file remains unaltered even after the backup process is complete.”

“The researchers noted that the chemical properties of the sample remained unaltered despite being exposed to extreme temperatures for several hours.”

Examples

simple

“The old house remains in its unaltered state.”

contextual

“The software ensures that the original file remains unaltered even after the backup process is complete.”

complex

“The researchers noted that the chemical properties of the sample remained unaltered despite being exposed to extreme temperatures for several hours.”

Real-World Examples

“All the posts were anonymized to protect any personal information, although unaltered versions were stored on an external hard drive not connected to the cloud.”
Ars Technica 24 Aug 2026

Etymology

From un- + altered.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

unaltered(B2)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Occasional
Level
B2 · Upper Intermediate
Updated

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English Reference