One that deals dishonestly with others, especially a cheating gambler.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sharper" in a sentence
"Yep ... sharper is better ... but yes, a bit pricey?"
"Then again sharper finishing from Higuain could have seen Real win 56-2."
"Or – it might drive most of it underground but not too deeply, so that whatever occasionally surfaces will stand in sharper contrast to a street scene with fewer prostitutes and abusees."