# unaltered

/əˈnɔɫtɝd/ (US) · /ʌnˈɒltəd/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/unaltered
Updated: 2026-05-26

## Definition

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

For teachers: 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.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.