false

artificial, false, synthetic, man-made

这些形容词均有“人造的，非自然的”之意。
artificial: 指模仿天然材料由人工制造的东西，侧重真伪对比。
false: 指因缺失而补上的替代物，有时也指伪装的。
synthetic: 与artificial近义，但前者强调通过化学作用或化学处理把几种物质复制成与原材料截然不同的新产品。
man-made: 指完全用人工制造，不含仿造和真伪对比的意味。

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。