The characteristic of having a negative charge.(noun)
The characteristic of being pessimistic or contrarian.(noun)
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Use "negativity" in a sentence
"But let me tell you, there's been a lot of what I call negativity going on over the last couple of months."
"In the paper's Wednesday edition, the editorial board which endorsed Clinton's White House bid earlier this year says the New York senator's "negativity" is doing "harm to her, her opponent, her party and the 2008 election.""
"People talk themselves into believing that they don't have a problem or that their negativity is under control."