Synonyms of faulty

faulty

adjective

ˈfȯl-tē 

as in defective

having a fault

the cause of the plane crash was traced to faulty wiring

Synonyms & Similar Words

• defective
• imperfect
• bad
• flawed
• damaged
• broken
• incomplete
• amiss
• inadequate
• insufficient
• fallible
• on the blink
• spoiled
• injured
• deficient
• impaired
• hurt
• marred
• blemished
• crippled
• disfigured
• wanting
• harmed
• vitiated
• defaced

Antonyms & Near Antonyms

• perfect
• intact
• whole
• entire
• complete
• flawless
• faultless
• impeccable
• undamaged
• unimpaired
• unblemished
• unspoiled

Example Sentences

Recent Examples of faulty

Each of these arguments begins with faulty assumptions and then asks the wrong questions. — David A. Deptula, Forbes.com, 22 July 2026

Officials would not go into detail on what caused the faulty result, but contamination is a common source of false positives. — Beth Mole, ArsTechnica, 21 July 2026

The reason was probably more likely a faulty sensor than poor ECU mapping. — New Atlas, 21 July 2026

For adults, a faulty diagnosis can become a self-fulfilling prophecy, O’Sullivan said. — Olga Khazan, The Atlantic, 20 July 2026