“非官方”用英语怎么说？

unofficial or non-official
official有官方人员的意思，non-official表示不是官方的人员

Private
private
名词私下,不公开[不可数名词]
Let me speak to him in private. 让我私下和他谈谈。

阴部[P]

士兵,列兵[可数名词]

[美国] [ˈpraɪvɪt] [英国] [ˈpraivit] 形容词个人的,私人的
That's my private view. 那是我个人的观点。

无官职的;平民的

喜欢独处的,不爱谈论私事的
She's a very private person. 她是个很孤僻的人。

隔离的,隐蔽的,幽僻的

非官方的
The president is paying a private visit to his neighboring country. 总统正在对邻国作非官方的访问。

私营的,私立的,私有的
If you go to a private hospital you must pay. 如果你去一家私立医院就诊,你得付费。

私下的,非公开的,秘密的
I wish to have a private talk with you. 我希望私下和你谈谈。

非官方
unofficial(ly)

非官方消息
news from unofficial sources

非官方报道
unofficial reports

非官方新闻(未经官方证实的).
Unofficial news,ie not confirmed by official sources or authorities

non-official adj.也可以用。

non-government 例: non-government organization 非官方团体

unofficial / non-official

informal

private