Meaning of the word upstart in English

What does upstart mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

upstart

US /ˈʌp.stɑːrt/
UK /ˈʌp.stɑːt/

Noun

Adjective

new and not experienced:

Example:
Upstart airlines like Southwest are competing today with the established carriers like Delta.