# upstart

/ˈəpˌstɑɹt/ (US) · /ˈʌpstɑːt/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/upstart
Updated: 2026-05-20

## Definition

a person who tries to be more important or powerful than they really are. People use this word when someone is acting like they belong to a higher social class than they actually do.

For teachers: a person who pretends to be more important or wealthy than they actually are. Often carries a derogatory or dismissive tone, implying a lack of legitimate social status or merit.

## Examples

- He is a total upstart who thinks he knows everything.
- The established family members were annoyed by the upstart who tried to take over the business without experience.
- The novel explores the tension between the traditional aristocracy and the upstart bourgeoisie, whose sudden wealth and influence threaten the established social order.

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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.