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Definition of faulty

faulty

/ˈfɔːl.ti/
faul · ty
Adverb:faultily
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faulty Lexical Profile

faulty Game Scores & Validity

• adjective

1

Working badly or unreliably because of imperfections or mechanical defects (of equipment, machinery, or systems).

Example

"The fire alarm went off unexpectedly due to faulty wiring in the basement."

2

Containing errors, logical flaws, or inaccuracies (of reasoning, judgment, memory, or information).

Example

"The committee rejected the proposal because its conclusions were based on faulty assumptions."

Synonyms
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Antonyms
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• Rhymes for faulty

• Nearby Words

faultlessly
faultlessness
faultline
faulty
faun
fauna
faust

Word Origin & Etymology

Formed in late Middle English from the noun 'fault' (borrowed from Old French 'faute', ultimately from Vulgar Latin 'fallita', meaning a failing or shortcoming) combined with the suffix '-y'.

Cite this Entry

Wordmom. (2026). Definition of Faulty. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/faulty
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