Meanings of more negativity in English

The thing is, the more negativity you spew, the worse you look.

Among girls, greater self-perceived other-gender similarity was associated with more negativity towards the same gender.

He would have expected more negativity.

Results: Depressed children demonstrated more negativity and less positivity in dyadic interactions than did children at high risk and control children.

Some investors worried about the tone of the former reality TV star's speech and others saw more negativity than optimism in his words.