# undergone

/ˌəndɝˈɡɔn/ (US) · /ˌʌndəɡˈɒn/ (UK) · CEFR B2 · Verb

Source: https://englishreference.com/word/undergone
Updated: 2026-05-03

## Definition

to experience something, especially a change, a process, or a difficult treatment.

For teachers: to experience or be subjected to a process, change, or unpleasant ordeal. The past participle of 'undergo'.

## Examples

- The old building has undergone many changes.
- The patient has undergone several tests to determine the cause of the pain.
- The city's infrastructure has undergone a massive transformation over the last decade, evolving from a manufacturing hub into a center for technological innovation.

## Pitfalls

- Not "The car has undergone by repairs." but "The car has undergone repairs." — Undergo is a transitive verb and takes a direct object without a preposition.

## Usage notes

- The verb is transitive and typically used in the passive voice or with a process as the direct object.

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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.