- faulty⇄adv. faultily.
- faulty⇄faulty, adjective, faultier,faultiest.
1. having faults; containing blemishes or errors; wrong; imperfect; defective.
Ex. a faulty design, a faulty principle. The leak in the faucet was caused by a faulty valve. Faulty friends (Robert Browning - faulty⇄noun faultiness.