1
be uncharacteristic of sb/sth
主语是某种行为或表现，of后接人或事物，表示这种行为不符合其常态。
His rude reply was uncharacteristic of him.
他粗鲁的回答不像他的一贯作风。
不典型的；无典型特征的
先理解核心含义，再看它在真实句子里的用法。
不典型的；无典型特征的
not typical; not characteristic
His rude reply was uncharacteristic of him.
他粗鲁的回答不像他的一贯作风。
不典型的；非特征的。
Not characteristic.
不符合性格的；对某人或某物而言不寻常的行为。
Out of character; behavior that is unusual for a given person or thing.
His sudden outburst was uncharacteristic of someone usually so calm.
他突然发脾气，对于一个通常如此冷静的人来说很不典型。
The team's uncharacteristic mistakes cost them the match.
球队一反常态的失误让他们输掉了比赛。
She accepted the criticism with uncharacteristic humility.
她以一反常态的谦逊态度接受了批评。
主语是某种行为或表现，of后接人或事物，表示这种行为不符合其常态。
His rude reply was uncharacteristic of him.
他粗鲁的回答不像他的一贯作风。
用作定语时表示“一反常态的、不典型的”。
The team made an uncharacteristic error in the final minutes.
球队在最后几分钟犯了一个不常见的错误。
it为形式主语，真正的主语是后面的不定式，用于评价某人的行为与其性格或习惯不符。
It was uncharacteristic of her to forget an appointment.
忘记约会对她来说是很反常的。
Not this
He was uncharacteristic late for the meeting.
Use this
He was uncharacteristically late for the meeting.
uncharacteristic 是形容词，只能修饰名词；此处需要副词形式 uncharacteristically 来修饰形容词 late，表示“一反常态地迟到”。
Not this
It is uncharacteristic for him to be rude.
Use this
It is uncharacteristic of him to be rude.
搭配介词应用 of：be uncharacteristic of sb 表示“某人一反常态地……”，不能用 for，介词错误导致搭配不成立。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一反常态的沉默
His uncharacteristic silence made everyone worried.
他一反常态的沉默让大家很担心。
反常的行为
Her uncharacteristic behavior puzzled her colleagues.
她反常的行为让同事们感到困惑。
不寻常的激烈反应
His uncharacteristic outburst surprised the whole team.
他异常激动的爆发让整个团队都感到惊讶。
一反常态的热情
She showed uncharacteristic warmth to the newcomer.
她一反常态地对新人表现出热情。
不是……特有的；对……而言不典型的
It is uncharacteristic of him to be rude.
他这么粗鲁可不像他的一贯作风。
Use uncharacteristic naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住character是“特征”，加上否定前缀un-就是“没有特征”，所以uncharacteristic意为“不典型的”。
语域：neutral 常见场景：正式文章、日常评价 该词为中性偏正式用语，通常用于描述某人的行为或事物不符合其惯常特点，多见于书面或比较正式的表达。
这六个词的重读元音均为 /ɪ/，后面都是 /stɪk/，因此与 uncharacteristic 押韵。注意：不要仅凭拼写判断，-astic 结尾的词（如 drastic、plastic、fantastic）读 /æstɪk/，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.