from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Sports Major-league.
- adj. Informal Prominent or important; major: a big-league politician; one of the big-league banks.
- adj. Informal Impressive or formidable: The nominee was subjected to big-league scrutiny.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. major-league
- adj. (by extension) large or important
Sorry, no etymologies found.