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.
Only about 6% of the vehicles under recall have faulty cameras, according to the recall report. Megan Cerullo, CBS News, 8 Apr. 2026 The faulty keycards aren’t a coincidence. Literary Hub, 8 Apr. 2026 Then Google went back and thought about it for a few weeks, and decided the best thing to do would be to build this admittedly-faulty product into crisis support training. Brittany Wallman, Miami Herald, 7 Apr. 2026 Amid Monday’s service issues, many Bluesky feeds were filled with hundreds of posts that laid the blame on developers who were allegedly relying on unreliable AI tools to ship faulty code. ArsTechnica, 7 Apr. 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 9 Apr. 2026.

Kids Definition

faulty

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

More from Merriam-Webster on faulty

Love words? Need even more definitions?

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

More from Merriam-Webster