gamesmanship

[ geymz-muh n-ship ]
/ ˈgeɪmz mənˌʃɪp /

noun

the use of methods, especially in a sports contest, that are dubious or seemingly improper but not strictly illegal.
the technique or practice of manipulating people or events so as to gain an advantage or outwit one's opponents or competitors.

Origin of gamesmanship

1945–50; game1 + -s3 + -manship, perhaps on the model of sportsmanship
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for gamesmanship

gamesmanship

/ (ˈɡeɪmzmənˌʃɪp) /

noun

informal the art of winning games or defeating opponents by clever or cunning practices without actually cheating

Derived Forms

gamesman, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012