形容词

1. It is unnatural for birds to fly north in the winter.
鸟儿在冬天飞向北方是反常的。

2. Her voice was a little strained, a little unnatural.
她的声音有点紧张，有点不自然。

1. 不自然的：不过,对于大多数人来说,形式的科学话语是一种非常不自然的(unnatural)语言. 它运用奇异的专业术语和只有经过多年研究才能理解的复杂论证方式. 从词汇和习语上来看,它已经演变得远离任何一种普通的自然语言.

2. 很不自然：And yet, there is something...|然而却有一件事... | ...unnatural...|很不自然 | ...about the way we eat lunch.|我们吃中饭的方式很不自然

3. 不自然的,反常的,不近人情的：facial 面部的 | unnatural 不自然的,反常的,不近人情的 | scorching 酷热的

4. 洁癖：拜托安静点 for god's sake | 洁癖 unnatural | 你怎么来了what are you doing here

1. 不自然的；诡异的；反常的
If you describe something as unnatural, you mean that it is strange and often frightening, because it is different from what you normally expect.

e.g. The aircraft rose with unnatural speed on take-off...
那架飞机以反常的速度起飞升空。
e.g. The altered landscape looks unnatural and weird.
改造后的景观看起来很不自然，极其怪异。

adj

1. speaking or behaving in an artificial way to make an impression

Synonym: affected

2. not in accordance with or determined by nature
contrary to nature

e.g. an unnatural death
the child's unnatural interest in death

3. not normal
not typical or usual or regular or conforming to a norm

e.g. abnormal powers of concentration
abnormal amounts of rain
abnormal circumstances
an abnormal interest in food

Synonym: abnormal