staying power definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
ability to last or endure; endurance
staying power definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The ability to endure or last.
staying power - Phrases/Idioms
The ability to endure or last, as in I'm not sure that this young novelist will have staying power, or Our candidate definitely has staying power. This expression comes from racing, where it means “the strength to maintain speed through a race.” [Second half of 1800s]