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.
Seven people were hospitalized, including two with serious injuries, after a faulty oil burner caused a severe carbon monoxide leak in the Bronx on Wednesday, according to Fire Department officials. Colin Mixson, New York Daily News, 18 Mar. 2026 But, faulty tax advice can have real consequences. Brittney Melton, NPR, 17 Mar. 2026 The premise of The Saviors, a genre-defying thriller written (with Travis Betz) and directed by Kevin Hamedani, is undeniably timely, exploring the way faulty assumptions about some unknown Other might have disastrous, even apocalyptic consequences. Angie Han, HollywoodReporter, 16 Mar. 2026 Another prominent biologist, Barry Commoner, saw faulty technology as the primary source of environmental problems. The Conversation, 16 Mar. 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 20 Mar. 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
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