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

If the collagen is faulty or too little is made, blood and protein can leak into urine. — Md Published, Verywell Health, 23 Oct. 2026

Tyler Shultz, a former Theranos research engineer who helped expose the company’s faulty blood-testing technology, barely recognized the woman on-screen. — Bilin Lin, Fortune, 20 Oct. 2026

His interview with O’Donnell relates his story—a faulty parachute, a tough crash, a long bloody hike, and survival until he was rescued by an American plane—in a genuinely moving way. — Vinson Cunningham, New Yorker, 18 Oct. 2026

The State Bureau of Investigation led a two-year-long probe into her faulty testing, under Mecklenburg District Attorney Spencer Merriweather’s direction. — Julia Coin, Charlotte Observer, 15 Oct. 2026