Definitions

faulty

[fawl-tee] / ˈfɔl ti /

ADJECTIVE

not working; incorrect

Synonyms

STRONGEST

broken cracked damaged defective deficient erroneous false flawed imprecise inaccurate inadequate incomplete insufficient invalid leaky malfunctioning unreliable

WEAK

adulterated amiss awry bad below par blamable blemished botched debased distorted fallacious fallible frail impaired imperfect inexact injured lame lemon maimed malformed marred out of order rank sick tainted unfit unretentive unsound warped weak wrong

Antonyms

STRONGEST

OK accurate adequate ample complete correct enough faultless fixed flawless honest perfect reliable right sufficient true unbroken valid working

WEAK

sound strong

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She also claimed that the coroner found Andrea's death was because of an overheated bath caused by a faulty boiler - something not mentioned in the report.

From BBC • Jun. 19, 2026

Past geopolitical shocks provided a faulty playbook for how assets behaved during the three-and-a-half month conflict with Iran.

From The Wall Street Journal • Jun. 16, 2026

Firefighters responded to a small airplane crash at the Whiteman Airport in Pacoima, a wreck caused by faulty landing gear within the aircraft, airport officials said.

From Los Angeles Times • Jun. 16, 2026

Whether the plumber directly caused the problem, failed to identify an underlying issue, or repaired one faulty component only for another to reveal itself, the result is the same: the cistern does not function properly.

From MarketWatch • Jun. 10, 2026

His sentences usually had at least one break of faulty breath control, so that, often, his emphasized words, instead of rising, sank.

From "Nine Stories" by J. D. Salinger

Vocabulary lists containing faulty

Fake It 'Til You Make It: Synonyms for "False"

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Drama

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Way Off: Synonyms for "Wrong"

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