the fact of being full of hope and confidence, or of giving cause for hope and confidence: The Scottish star said that he liked the positiveness of America.
noun
[具体名词]
信心；肯定
She answered my question with positiveness.
她回答我的问题很自信。
-ness
表名词，“性质，状态，”通常加在形容词后面
positiveness
n. 肯定（positive 肯定的）
