# uncool

/ˌənˈkuɫ/ (US) · /ʌnkˈuːl/ (UK) · CEFR B2 · Adjective

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

## Definition

not cool or not stylish. You use this to describe something that is boring, unfashionable, or not popular with your friends.

For teachers: lacking in style, popularity, or social appeal. Informal in register; typically used to describe actions, objects, or behaviors that fail to meet current social standards of desirability.

## Examples

- Wearing that ugly hat to the party is totally uncool.
- It was pretty uncool of him to ignore his best friend when they were walking down the street.
- The marketing campaign was criticized as uncool by younger demographics, who found the nostalgic references to 1980s technology to be outdated and inauthentic.

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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.