upstart

An upstart is someone who's cocky and arrogant, and who doesn't show much respect for other people.

There are many ways of starting up trouble — one is by being an upstart. Upstarts are people who are full of themselves and dismissive of others. Often, an upstart is a young person or newcomer. A new employee who acts like he knows more than everyone else is an upstart. An arrogant rookie on a sports team is an upstart. In the 1500s, upstart and start-up were both used to mean the same thing, "one newly risen in importance."

Definitions of upstart
  1. noun
    a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
    synonyms: arriviste, nouveau-riche, parvenu
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    types:
    climber, social climber
    someone seeking social prominence by obsequious behavior
    junior
    term of address for a disrespectful and annoying male
    lion-hunter
    someone who tries to attract social lions as guests
    type of:
    disagreeable person, unpleasant person
    a person who is not pleasant or agreeable
  2. noun
    an arrogant or presumptuous person
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    types:
    smart aleck, weisenheimer, wise guy, wiseacre, wisenheimer
    an upstart who makes conceited, sardonic, insolent comments
    type of:
    disagreeable person, unpleasant person
    a person who is not pleasant or agreeable
  3. adjective
    characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position
    synonyms: nouveau-riche, parvenu, parvenue
    pretentious
    making claim to or creating an appearance of (often undeserved) importance or distinction
  4. noun
    a gymnastic exercise performed starting from a position with the legs over the upper body and moving to an erect position by arching the back and swinging the legs out and down while forcing the chest upright
    synonyms: kip
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    type of:
    gymnastic exercise
    (gymnastics) an exercise designed to develop and display strength and agility and balance (usually performed with or on some gymnastic apparatus)
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