\ ˈfȯl-tē How to pronounce faulty (audio) \
faultier; faultiest

Definition of faulty

: marked by fault or defect : imperfect

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Other Words from faulty

faultily \ ˈfȯl-​tə-​lē How to pronounce faulty (audio) \ adverb
faultiness \ ˈfȯl-​tē-​nəs How to pronounce faulty (audio) \ noun

Synonyms & Antonyms for faulty



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Examples of faulty in a Sentence

the cause of the plane crash was traced to faulty wiring
Recent Examples on the Web Or if the processes it’s being put through, the way it’s being manipulated or the algorithms that are being applied to it are faulty? Insights Team, Forbes, 21 Sep. 2021 To be abundantly clear, this does not mean that WhatsApp’s encryption is somehow faulty, or that anyone is spying on your messages. Brian Barrett, Wired, 10 Sep. 2021 In reality, Leach said, the company’s tests were faulty and Theranos relied on traditional machines. Roland Li, San Francisco Chronicle, 8 Sep. 2021 Mike Mikalsen, a spokesman for Nass, contends Thompson's argument is faulty, citing the Wisconsin Supreme Court decision that struck down the stay-at-home order in May of 2020. Devi Shastri, Milwaukee Journal Sentinel, 26 Aug. 2021 Hall says other common causes of dove hunting accidents involve careless handing of firearms in or around vehicles, pointing firearms in an unsafe direction, obstructions in a barrel or firearms that are faulty. Matt Williams, Dallas News, 21 Aug. 2021 Those who are elderly or whose immune systems are faulty, damaged or stressed by some other illness are less likely to mount a robust response than someone younger and fitter. Jason Douglas, WSJ, 2 July 2021 Some qualifications are worth making upfront, lest some make faulty assumptions and take cheap shots. Jack Butler, National Review, 22 Aug. 2021 Investigators later blamed a faulty thermal management system designed to keep the battery pack cool. Paul A. Eisenstein, NBC News, 23 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'faulty.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of faulty

14th century, in the meaning defined above

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Time Traveler for faulty

Time Traveler

The first known use of faulty was in the 14th century

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Dictionary Entries Near faulty

fault vent


fault zone

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Statistics for faulty

Last Updated

28 Sep 2021

Cite this Entry

“Faulty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/faulty. Accessed 18 Oct. 2021.

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More Definitions for faulty



English Language Learners Definition of faulty

: having a mistake, fault, or weakness : imperfect


\ ˈfȯl-tē How to pronounce faulty (audio) \
faultier; faultiest

Kids Definition of faulty

: having a fault, flaw, or weakness : imperfect

More from Merriam-Webster on faulty

Nglish: Translation of faulty for Spanish Speakers

Britannica English: Translation of faulty for Arabic Speakers


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