faultier; faultiest
Synonyms of faultynext
: marked by fault or defect : imperfect
faultily adverb
faultiness noun

Examples of faulty in a Sentence

the cause of the plane crash was traced to faulty wiring
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But that could be faulty thinking right now, especially considering that home equity levels are now at a record high, and home equity loan interest rates are slowly but steadily declining again. Matt Richardson, CBS News, 18 Dec. 2025 Such trials and errors can be costly endeavors, but replacing a faulty drone chassis that costs only $3 to print does not pull firmly on the purse strings compared to the cost of replacing a commercial part, according to the Air Force. Prabhat Ranjan Mishra, Interesting Engineering, 17 Dec. 2025 If one sets aside the faulty assumption that nuclear deterrence will hold, then increasing Europe’s reliance on nuclear weapons—or even just maintaining it—becomes an untenable proposition. Siegfried Hecker, Foreign Affairs, 16 Dec. 2025 Barrasso, a physician, said the Democrats simply want to continue a faulty health care system. David Lightman, Sacbee.com, 11 Dec. 2025 See All Example Sentences for faulty

Word History

First Known Use

14th century, in the meaning defined above

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

Browse Nearby Words

Cite this Entry

“Faulty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/faulty. Accessed 23 Dec. 2025.

Kids Definition

faulty

adjective
faultier; faultiest
: having a fault or weakness : imperfect
faultily adverb
faultiness noun

More from Merriam-Webster on faulty

Last Updated: - Updated example sentences
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