
künstlich
artificial
Not occurring in nature, but made or produced by humans.
Die Blumen in der Vase sind künstlich, sie sind aus Seide gemacht.
The flowers in the vase are artificial; they are made of silk.
artificial
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artificial
Not occurring in nature, but made or produced by humans.
Die Blumen in der Vase sind künstlich, sie sind aus Seide gemacht.
The flowers in the vase are artificial; they are made of silk.

artificial
Seeming unnatural, affected, or forced; not genuine or spontaneous.
Sie setzte ein künstliches Lächeln auf, als ihr Chef den Raum betrat.
She put on an artificial smile when her boss entered the room.

artificial
Produced through technical or medical procedures in order to replace or simulate a natural process.
Nach dem schweren Unfall wurde der Patient in ein künstliches Koma versetzt.
After the serious accident, the patient was put into an artificial coma.
The adjective 'künstlich' (artificial) is derived from the noun 'die Kunst' (art). It describes something created through human skill or technology, as opposed to something natural.
Die Höhle wurde von künstlichem Licht erhellt.
The cave was illuminated by artificial light.
The meaning of 'künstlich' (artificial) depends strongly on the noun. With objects it means 'hergestellt' (manufactured), as in 'künstliche Blumen' (artificial flowers); with behavior it means 'unecht' (fake), as in 'künstliches Lächeln' (artificial smile); and in medicine it means 'technisch erzeugt' (technically produced), as in 'künstliches Gelenk' (artificial joint).
Ich mag keine künstlichen Süßstoffe im Joghurt.
I don't like artificial sweeteners in yogurt.
'Künstlich' (artificial) is often used for human-made things and substances. Common combinations are 'künstliches Licht' (artificial light), 'künstliche Intelligenz' (artificial intelligence), or 'künstliche Aromen' (artificial flavors).
Künstliche Intelligenz verändert viele Bereiche unseres Lebens.
Artificial intelligence is changing many areas of our lives.
When 'künstlich' (artificial) describes behavior or emotions, it has a negative meaning and means 'unecht' (fake) or 'aufgesetzt' (forced). Typical phrases are 'ein künstliches Lächeln' (an artificial smile) or 'künstliche Aufregung' (artificial excitement).
Er reagierte mit künstlicher Empörung auf die Kritik.
He reacted to the criticism with artificial indignation.
wrong / false
Both words can be used for a replacement for something natural. „Falsch“ is often the everyday expression, as in „falschen Zähnen“ (false teeth), while „künstlich“ neutrally describes how something is made or its function as a replacement. The choice therefore depends greatly on the usual expression and the tone you want.

Nach dem Unfall bekam er künstliche Zähne, die seine natürlichen Zähne ersetzen.
After the accident, he got artificial teeth to replace his natural teeth.
Nach dem Unfall bekam er falsche Zähne, die seine natürlichen Zähne ersetzen.
After the accident, he got false teeth to replace his natural teeth.