1 derogatory A person who has risen suddenly in rank or importance, especially one who behaves arrogantly: the upstarts who dare to challenge the legitimacy of his rule
More example sentences
- But be scrupulously polite to the people you criticize: A polite upstart is more tolerated than a rude one.
- The media's role in exposing his unfortunate behaviour and upstart arrogance has been highly commendable.
- At first she wanted to punch the nurse and storm off - how dare the young upstart speak to her like that?