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 issue could be a faulty blend-door motor, wiring, or control. John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 16 May 2026 Investigators found that a flight-control system repeatedly forced the nose of the then-new planes downward based on faulty readings from a single sensor, and pilots in both crashes were unable to regain control. Rio Yamat, Fortune, 15 May 2026 Released in early January, medical experts decried the schedule as bypassing the government’s typical process for recommending vaccines and argued the effort was built on faulty assumptions. Rachel Roubein, Washington Post, 15 May 2026 But not all faulty information online is being spread in bad faith. Allison Parshall, Scientific American, 15 May 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

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Cite this Entry

“Faulty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/faulty. Accessed 17 May. 2026.

Kids Definition

faulty

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

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