false

artificial, false, synthetic, man-made

形容词 false:

1. not in accordance with the fact or reality or actuality
2. arising from error
   同义词：mistaken
3. erroneous and usually accidental
4. deliberately deceptive
   同义词：hollow
5. inappropriate to reality or facts
   同义词：delusive
6. not genuine or real; being an imitation of the genuine article
   同义词：fake, faux, imitation, simulated
7. designed to deceive
8. inaccurate in pitch
   同义词：off-key, sour
9. adopted in order to deceive
   同义词：assumed, fictitious, fictive, pretended, put on, sham
10. (used especially of persons) not dependable in devotion or affection; unfaithful
    同义词：untrue

副词 false:

1. in a disloyal and faithless manner
   同义词：faithlessly, traitorously, treacherously, treasonably

1. One false move and you're a dead man, ' snarled the robber.
   那强盗厉声叫道: ｀不许动，不然就打死你.＇
2. After several false starts, she became a successful journalist.
   她开始时遇到几次挫折，後来才成为能干的记者
3. The impostor traveled on a false passport.
   那个伪装者用一本假护照旅行。
4. They lulled me into a false sense of security.
   他们哄骗我，让我产生了一种虚假的安全感。
5. Your answer to this question is false.
   你对这个问题的回答是错误的。

false

adj.（形容词）
fals.er,fals.est
Contrary to fact or truth:
虚伪的，假的：与真理或事实相反的：
例句：
false tales of bravery.
不真实的英勇故事

Deliberately untrue:
故意作假的：
例句：
delivered false testimony under oath.
宣誓后作假证词

Arising from mistaken ideas:
从错误观点出发的：
例句：
false hopes of writing a successful novel.
错误地希望写出一本成功的小说

Intentionally deceptive:
故意欺骗的：
例句：
a suitcase with a false bottom; false promises.
带有假底的皮箱；欺骗的许诺

Not keeping faith; treacherous:
无信义的；不忠诚的：
例句：
a false friend.See Synonyms at faithless
不义的朋友参见 faithless

Not genuine or real:
假的，不是真的：
例句：
false teeth; false documents.
假牙；伪造的文件

Erected temporarily, as for support during construction.
临时装上去的：在修筑过程中为支撑而临时建立的
Resembling but not accurately or properly designated as such:
似乎相象的：相似的但不是精确或适当地标明的，例如：
例句：
a false thaw in January; the false dawn peculiar to the tropics.
一月冰雪近似融化；热带地区所特有的假曙光

Music Of incorrect pitch.
【音乐】 不合调的
Unwise; imprudent:
不聪明的；鲁莽的：
例句：
Don`t make a false move or I`ll shoot.
别乱动，否则我开枪了

adv.（副词）
In a treacherous or faithless manner:
背信弃义地，不忠地：背信弃义的或不忠的态度：
例句：
play a person false.
对人不诚实

来源：
Middle English fals
中古英语 fals
from Old French
源自 古法语
from Latin falsus [from past participle of] fallere [to deceive]
源自 拉丁语 falsus [] 源自fallere的过去分词 [欺骗]

【引伸】
false.ly
adv.（副词）
false.ness
n.（名词）