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unofficially + verb
unofficially 修饰动词时，表示该动作并非通过官方渠道或正式声明完成。
The minister unofficially confirmed the reports.
部长非正式地证实了这些报道。
非正式地；非官方地
先理解核心含义，再看它在真实句子里的用法。
非正式地；非官方地
in an unofficial manner; without official authorization
The minister unofficially confirmed the reports.
部长非正式地证实了这些报道。
非正式地；以非官方方式。
In a way that is not official; in an unofficial manner.
She unofficially announced the results before the official press release.
她在官方新闻稿发布之前非正式地公布了结果。
The two companies have unofficially agreed to merge, but no contract has been signed yet.
两家公司已非正式地同意合并，但尚未签署合同。
He is unofficially the team captain, though the coach has not named him.
他非正式地担任队长，尽管教练尚未任命他。
unofficially 修饰动词时，表示该动作并非通过官方渠道或正式声明完成。
The minister unofficially confirmed the reports.
部长非正式地证实了这些报道。
被动结构中，unofficially 说明动作未走正式程序，常用于新闻或传闻语境。
The new policy has been unofficially approved.
新政策已被非正式地批准。
置于句首并加逗号时，表示“据非官方说法”，引出未经证实的信息。
Unofficially, the restaurant is owned by a famous chef.
据非官方说法，这家餐厅的老板是一位名厨。
Not this
The results were unofficial released.
Use this
The results were unofficially released.
released 是动词，需要用副词 unofficially 修饰，而 unofficial 是形容词，只能修饰名词；不要受中文‘非官方地’中‘非官方’是形容词的影响。
Not this
Inofficially, the company has announced a new product.
Use this
Unofficially, the company has announced a new product.
表示‘非正式地/非官方地’的副词是 unofficially，前缀是 un-，不是 in-；不要把 in- 和 un- 这两种否定前缀混用，这是常见的构词错误。
Not this
Not officially, the meeting has been postponed.
Use this
Unofficially, the meeting has been postponed.
句首作评注性状语表示‘据非官方消息’，应用单个副词 unofficially；‘not officially’通常是否定句中的副词短语，不能直接放在句首引导这种评注。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
非正式确认
The news was unofficially confirmed by a staff member.
这一消息得到了工作人员的非正式确认。
非正式地被称为
The area is unofficially known as the city's art district.
该地区非正式地被称为这座城市的艺术区。
非正式报道
It was unofficially reported that the company would merge.
据非正式报道，这家公司将合并。
非正式提名
He has been unofficially named as the next team captain.
他被非正式地指定为下任队长。
非正式退役
Although he never announced it, he has unofficially retired from competition.
尽管他从未宣布，但他已经非正式地退出了比赛。
Use unofficially naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
un + officially（官方地）→ 非官方地。想象一个‘UFO’（un-开头）非正式出现，官方不承认。
语域：neutral 常见场景：新闻报道、工作场合、日常对话 该词为中性副词，正式与非正式语境中都较常见；多用于新闻或工作场合中表示“非官方”或“未公开证实”的信息。
与 unofficially /ˌʌnəˈfɪʃəli/ 押韵的词：officially、artificially、superficially、beneficially，均以 /ɪʃəli/ 结尾。注意 especially 和 specially 也以 -ially 结尾，但读作 /ˈspeʃəli/，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.