劍橋詞典

the quality of having a positive attitude
正麪，積極
I'm a great believer in positivity. 我認(rèn)爲(wèi)保持正麪積極非常重要。
反義詞
negativity

the fact that something such as a test has a positive result
（測(cè)試等）有正麪結(jié)果
a 3 per cent positivity rate 3%的正麪結(jié)果 返回 positivity