faulty
Definitions
Having defects, imperfections, or errors; not working properly.
Based on incorrect reasoning or flawed logic.
Examples
The technician discovered that the faulty wiring was the cause of the power outage.
He decided to return the faulty appliance to the store for a full refund.
Faulty logic in the computer program led to several errors during the data analysis.
Synonyms
defective flawed imperfect broken erroneous malfunctioning inaccurate