artificial; unnatural; human-caused (e.g. mistake, error, disaster); man-made
これは人為的なミスだ。
This is a human-caused mistake.
人為的な操作で結果が変わった。
The result changed because of human intervention.
この事故は人為的な要因が複合的に重なった結果だ。
This accident was the result of multiple human factors overlapping.