# afterthought

/ˈæftɝˌθɑt/ (US) · /ˈɑːftəθˌɔːt/ (UK)

Source: https://englishreference.com/word/afterthought
Updated: 2026-08-27

## Senses

### 1. a later addition

noun · CEFR B2

something added to a plan or a conversation later because it was forgotten at the start.

For teachers: an item, idea, or detail added to a plan or statement subsequently, often implying it was not part of the original design.

- The small balcony felt like an afterthought because it was too tiny to use.
- The final chapter of the report seemed like a mere afterthought, lacking the rigorous analysis present in the earlier sections.

Usage: Often used with the preposition 'as' or 'an', as in 'added as an afterthought'.

Teaching tip: This word often carries a slightly negative nuance, suggesting that the thing was not important enough to be planned properly.

### 2. a later reflection

noun · CEFR C1 · Formal

a thought that comes to you after you have already done or said something.

For teachers: a reflection or secondary thought occurring after an action has been completed.

- It was only as an afterthought that I realized I had forgotten my keys.
- Upon further reflection and as a quiet afterthought, he admitted that his initial reaction had been somewhat hasty.

## Examples

- The small garden was a last-minute afterthought.
- The architect added a second floor as an afterthought, which made the building feel cramped.
- While the initial design was functional, the inclusion of a private balcony was a welcome afterthought that significantly increased the property's market value.

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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.