Persistence and determination; tenacity. He's always had great ideas for novels, but he's never had enough sticktoitiveness to complete one. We need someone punctual and reliable, with the sticktoitiveness necessary to see high-pressure projects through to completion.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. tenacity. The kid has sticktoitiveness. I like that in a kid.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.