Artificial
Man Made, Human Made
noun, の adjective
A person of industry makes a lot of things by hand, so everything they make is artificial, and also means it's man made.
This is a jukugo word, which usually means on'yomi readings from the kanji. Since 人 has two on'yomi readings, here's a mnemonic to help you remember which one to use:
Remember this by thinking about how jeans (じん) are artificial. You've never seen jeans growing on trees, right? Nope, jeans are 100% man made.
人工の川
man-made river
人工のダム
man-made dam
人工の山
artificial mountain
これ、ほんとうに人工コアラ？
Is this really an artificial koala?
この川は、人工の川です。
This river is man-made.
このクオリティ、人工のバラだとはおもえない！
With this quality it's unbelievable that these are artificial roses!