" big-timers "

1: one of high position or importance within a group;

  * e.g., " ... a field in which one can go from being a big-timer to a small-timer in practically no time at all "

•  Synonyms : 

•  big boys,

•  big cheeses,

•  bigfeet,

•  biggies,

•  big guns,

•  big leaguers,

•  bigs,

•  big shots,

•  big wheels,

•  bigwigs,

•  fat cats,

•  heavies,

•  heavy hitters,

•  heavyweights,

•  high-muck-a-mucks,

•  honchos,

•  kahunas,

•  kingfish,

•  kingpins,

•  major leaguers,

•  muckety-mucks,

•  nabobs,

•  nawabs,

•  nibs,

•  nobs,

•  pooh-bahs,

•  wheels

•  Antonyms : 

•  lightweights,

•  nobodies,

•  nonentities,

•  shrimp,

•  twerps,

•  whippersnappers,

•  zeros,

•  zilches

1: the highest level of a field of endeavor;

  * e.g., " ... the young ad execs knew that their agency had hit the big time when major corporations came calling "

•  Synonyms : 

•  big(s),

•  big league(s),

•  major league

•  Antonyms : 

• (N/A)

1: one of high position or importance within a group;

  * e.g., " ... a field in which one can go from being a big-timer to a small-timer in practically no time at all "

•  Synonyms : 

•  big,

•  big boy,

•  big cheese,

•  big gun,

•  big leaguer,

•  big shot,

•  big wheel,

•  bigfoot,

•  biggie,

•  bigwig,

•  fat cat,

•  heavy,

•  heavy hitter,

•  heavyweight,

•  high-muck-a-muck,

•  honcho,

•  kahuna,

•  kingfish,

•  kingpin,

•  major leaguer,

•  muckety-muck,

•  nabob,

•  nawab,

•  nibs,

•  nob,

•  pooh-bah,

•  wheel

•  Antonyms : 

•  lightweight,

•  nobody,

•  nonentity,

•  nothing,

•  twerp,

•  whippersnapper,

•  zero,

•  zilch