bigtime

adj

1. Of major significance or importance.

   “Wait till you see your name in two-foot electrics over the front of every big-time house in the country.”

   “Krasnow is a big-time operator; I’ve always been, you might say, in the peanut end of the game.”

   “'On the level, honey, I have an all-time, big-time need for coffee.'”

   “Tired of shelling out bigtime bucks to see overpaid major leaguers with underwhelming stats and attitudes to match, baseball fans by the thousands are rediscovering a more relaxed—and cheaper—version of the national pastime: the minor leagues.”

   “With a previous conviction in 1954 for receiving tins of corned beef, Betchley was hardly bigtime.”

adv

1. (not-comparable)To a significant degree.

   “This was the first test for that message -- and it failed bigtime.”

noun

1. (alt-of, alternative)Alternative form of big time.

   “The Financial News Network’s SCORE program […] hit the bigtime last Monday by offering live coverage of Snow Chief’s victory in the Jersey Derby […]”

   “Thirty years ago Rob Halford led Judas Priest, and heavy metal itself, out of the Midlands and into the bigtime.”