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.
At the recent Olympic trials, a faulty exchange led to Myers' disqualification in the 1500. Ren Clayton, CBS News, 21 Jan. 2026 The issue is, the researchers say, is that the study's experimental design was faulty – a control group involved no stimulation, preventing blinding and raising the chances of the placebo effect in those who did use the device. New Atlas, 21 Jan. 2026 Understanding Frozen Pipes Frozen pipes often occur when there has been a sudden or surprise drop in temperatures, a thermostat that has not been programmed correctly or is faulty, and poor insulation. Kait Hanson, Southern Living, 18 Jan. 2026 In 2005, the museum was gutted by a fire caused by faulty wiring. Sarah Bahari, Dallas Morning News, 16 Jan. 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 28 Jan. 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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