# thought bubble

idiom

Source: https://englishreference.com/idiom/thought-bubble
Updated: 2026-08-10

## Meaning

An ill-conceived idea.

## Examples

- That plan is just a thought bubble.
- He realized his idea for a flying car was just a thought bubble when he saw the cost.
- The committee dismissed the proposal as a mere thought bubble, lacking the necessary infrastructure to succeed in the current market.

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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.