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.
The Grand Concourse fire was caused by a faulty circuit breaker panel. Lillian Bonsignore, New York Daily News, 18 Feb. 2026 But one person familiar with the decisions told Semafor that at least one executive from a company described by the survey had reached out to multiple outlets asking for the pieces to be taken down, arguing that the survey data was faulty and biased. Max Tani, semafor.com, 16 Feb. 2026 Soldiers spent days scrubbed in grease, exposed to toxic chemicals, and blistering heat to find a single faulty sensor. Mrigakshi Dixit, Interesting Engineering, 16 Feb. 2026 Its old building, constructed in 1939 for the Social Security Board, needed expensive renovations; reportedly had ancient, faulty wiring; was far too big; and was generally unsuitable for modern journalism. The Atlantic, 11 Feb. 2026 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 21 Feb. 2026.

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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