faultier; faultiest
: 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.
In July 2024, cybersecurity company CrowdStrike sent a faulty update to its security program, which crashed Microsoft Windows computers running the software. Christopher Elliott, Forbes.com, 14 Sep. 2025 The episodes usually involve finding the cracks in the book, assessing what doesn’t hold up or what’s based on faulty reasoning or where ideas go wrong. Nicholas Quah, Vulture, 10 Sep. 2025 The Fyre Festival was widely covered in the media, and two documentaries exploring its faulty conception and disastrous execution were released in 2019. Ryan Coleman, Entertainment Weekly, 8 Sep. 2025 The beginnings of it are depicted in true disaster movie style, with ominous music and a collapsing electric pylon that causes a faulty cable to fall to the ground. Damon Wise, Deadline, 6 Sep. 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 16 Sep. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!