1
uncharacteristically + adj.
修饰形容词时，表示该性质与平时不同。
She was uncharacteristically quiet during the meeting.
她在会议上安静得不同寻常。
不典型地；非同寻常地
先理解核心含义，再看它在真实句子里的用法。
不典型地；非同寻常地
in an uncharacteristic manner; atypically
She was uncharacteristically quiet during the meeting.
她在会议上安静得不同寻常。
反常地；一反常态地。
In an uncharacteristic manner.
He was uncharacteristically quiet during the meeting this morning.
今天上午开会时，他出奇地安静。
She uncharacteristically arrived early for the appointment.
她一反常态地提前到达了约会地点。
The room was uncharacteristically tidy after the party.
聚会过后，房间竟然异常整洁。
修饰形容词时，表示该性质与平时不同。
She was uncharacteristically quiet during the meeting.
她在会议上安静得不同寻常。
修饰动词时，强调行为与往常不同。
He behaved uncharacteristically at the party.
他在聚会上表现得一反常态。
置于句首，用来评价某个行为不符合某人的一贯特点。
Uncharacteristically for him, he forgot the appointment.
他居然忘了约会，这很不像他的作风。
Not this
He was uncharacteristic quiet at the meeting.
Use this
He was uncharacteristically quiet at the meeting.
quiet 是形容词，需要用副词 uncharacteristically 修饰，表示“反常地安静”；不能用形容词 uncharacteristic 修饰形容词。
Not this
It was uncharacteristically of him to leave early.
Use this
It was uncharacteristic of him to leave early.
句型是 It is uncharacteristic of someone to do something，系动词后需用形容词 uncharacteristic，不能用副词 uncharacteristically。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一反常态地安静
He was uncharacteristically quiet at dinner.
他晚饭时一反常态地安静。
异常温和
The weather was uncharacteristically mild for January.
一月份的天气异常温和。
难得地坦诚
She was uncharacteristically honest about her mistakes.
她难得坦诚地承认了自己的错误。
异乎寻常地慷慨
He was uncharacteristically generous with his time.
他异乎寻常地慷慨，肯花时间。
一反常态地沉默
The usually chatty child was uncharacteristically silent.
那个平时爱说话的孩子一反常态地沉默。
Use uncharacteristically naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 uncharacteristically 拆成 un + characteristic + ally：一个角色（character）做出不像自己的事，就是‘反常地’。
语域：neutral 常见场景：news reporting、storytelling、formal writing 该副词通常用于较正式或书面化的表达，表示“与某人一贯的做法或性格不同”；在新闻报道、叙述和评论中比较常见。
这些词的重读元音及之后的部分均为 /ɪstɪkli/，与 uncharacteristically 押韵。注意 uncharacteristic（形容词）和 characteristic 去掉词尾 -ally，分别读作 /ˌʌnkærəktəˈrɪstɪk/ 和 /ˌkærəktəˈrɪstɪk/，与目标词不押韵。
Dictionary facts from ECDICT, WIKTIONARY.