What does upstart mean?
A person who has-ambrassed themselves by their impertinence or forwardness, especially in seeking to rise to a higher social position. A person who is impudently presumptuous.
Example
"The young upstart thought he could outdo his boss, but his arrogance was his downfall."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.