# unforgettable

/ˌənfɝˈɡɛtəbəɫ/ (US) · /ʌnfəɡˈɛtəbəl/ (UK) · CEFR B1 · Adjective

Source: https://englishreference.com/word/unforgettable
Updated: 2026-05-06

## Definition

so special, beautiful, or shocking that you cannot forget it. You use this to describe a memory that stays in your mind for a long time.

For teachers: impossible to forget; very memorable. Often used to describe significant personal experiences or striking sensory impressions.

## Examples

- Our trip to the mountains was truly unforgettable.
- The singer gave an unforgettable performance that left the entire audience in tears.
- The sunset over the ancient ruins provided an unforgettable backdrop to the final evening of our journey, etching itself into our collective memory.

## Usage notes

- Often follows a linking verb like 'be', 'seem', or 'become'; frequently modified by intensifiers such as 'truly' or 'absolutely'.

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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.