faulty
🇺🇸
/ˈfɔːlti/
🇬🇧
/ˈfɔːlti/
not working correctly or having defects
The machine stopped working because of a faulty part.
机器停止工作是因为一个故障零件。
containing mistakes or errors in thinking
His argument was based on faulty logic.
他的论点基于错误的逻辑。