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Use "testiness" in a sentence
"Anyone watching that video knows that what was termed 'testiness' was a totally overwrought editorializing."
"He notes that there was a lot of "testiness" between Teixeira and Alex Rodriguez in Texas and Gammons wonders how Teixeira will handle the high expectations that come with playing in New York"
"I don't know how much of this "testiness" Gammons saw himself but I don't like to hear gossip or hearsay coming from him."