Third-person singular simple present indicative form of upset.(verb)
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Use "upsets" in a sentence
""The label upsets me," South Africa-born lawyer Michael Zetler, who founded the Misgav community of Manof in 1980 with other immigrants from what was then an apartheid state, said Thursday."
"And how many women have you polled to see that Palin upsets them?"
"The one thing that upsets is me is when the commenters turn on the editors of everyday fiction."