[1] : The Collaborative International Dictionary of English v.0.48

upstart \upstart"\, v. i.
   to start or spring up suddenly. --spenser. tennyson.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

upstart \up"start`\, n.
   1. one who has risen suddenly, as from low life to wealth,
      power, or honor; a parvenu. --bacon.
      1913 webster

   2. bot. the meadow saffron. --dr. prior.
      1913 webster

[3] : The Collaborative International Dictionary of English v.0.48

upstart \up"start`\, a.
   suddenly raised to prominence or consequence. "a race of
   upstart creatures." --milton.
   1913 webster

[4] : WordNet (r) 2.0

upstart
     adj : characteristic of someone who has risen economically or
           socially but lacks the social skills appropriate for
           this new position syn: nouveau-riche, parvenu, parvenue,
            upstarta
     n 1: an arrogant or presumptuous person
     2: a person who has suddenly risen to a higher economic status
        but has not gained social acceptance of others in that
        class syn: parvenu, nouveau-riche, arriviste
     3: a gymnastic exercise performed starting from a position with
        the legs over the upper body and moving to an errect
        position by arching the back and swinging the legs out and
        down while forcing the chest upright syn: kip
see also:
nouveau-riche parvenu parvenue upstarta arriviste kip 

[5] : Moby Thesaurus II by Grady Ward, 1.0

122 moby thesaurus words for "upstart":
   babbitt, philistine, young turk, adventurer, arriviste, bob up,
   boldface, boor, bounder, bourgeois, bourgeois gentilhomme,
   brazenface, break water, bright young man, cad, churl, chutzpanik,
   clown, comer, emigrant, epicier, fledgling, float up, fly up,
   fountain, gate-crasher, greenhorn, groundling, gush, guttersnipe,
   hooligan, hussy, ill-bred fellow, immigrant, intruder, jet,
   jump up, leap up, looby, lout, low fellow, malapert, minx, modern,
   modern generation, modern man, modernist, modernizer, mucker,
   mushroom, name-dropper, neologism, neologist, neology, neonate,
   neoteric, neoterism, neoterist, new arrival, new boy,
   new generation, new man, newcomer, newly-rich, nobody,
   nouveau riche, nouveau roturier, nouveau-riche, novus homo,
   outsider, parvenu, parvenue, peasant, pig in clover, pop up,
   pretender, pup, puppy, recruit, ribald, rising generation, rocket,
   rookie, roturier, rough, roughneck, rowdy, ruffian, saucebox,
   settler, shoot up, skyrocket, slob, smart aleck, smart-ass, smarty,
   smarty-pants, social climber, spring up, sprout, spurt, squatter,
   start up, status seeker, stowaway, stripling, surface, swaggerer,
   tenderfoot, tufthunter, upleap, upshoot, upspear, upspring,
   vault up, vulgarian, vulgarist, whippersnapper, wise guy, wise-ass,
   would-be gentleman, yokel

Upstart >> U Words
Upstart, definition of term: Upstart
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