Definition of faulty in US English:

faulty

adjectivefaultiest, faultier

  • 1Working badly or unreliably because of imperfections.

    ‘a car with faulty brakes’
    • ‘No re-test fee will apply for minor defects such as faulty light bulbs.’
    • ‘It was a junky old station wagon with a faulty exhaust system and brakes.’
    • ‘The agency workers will look for defects such as sub-standard tyres, faulty lights and exhausts.’
    • ‘Common causes of warping include faulty installation or defective manufacture of the siding.’
    • ‘One was apparently faulty and the other did not have a battery.’
    • ‘That accident, which again involved a truck with faulty brakes, left three people injured and damaged 10 parked vehicles.’
    • ‘Errors include transposed numbers, faulty equipment, mutilated punch cards and computer glitches.’
    • ‘It will target cyclists who flout road regulations by, for example, riding without lights or having faulty brakes.’
    • ‘Of the 12 vehicles with serious defects two of the faulty school buses were repaired and re-tested on site before being cleared.’
    • ‘Perhaps you're using poor technique, faulty equipment or simply doing too much.’
    • ‘You investigate and find that faulty wiring is to blame.’
    • ‘It is the driver who determines the speed of the vehicle when the road is bad, visibility is poor, the surface is wet or when brakes are faulty.’
    • ‘This can help spot design defects and prevent faulty products from reaching the market.’
    • ‘Initial reports suggest that faulty electrical wiring may have caused the fire.’
    • ‘The act regulates the right to a legal defence and obtaining compensation for damages caused by faulty products.’
    • ‘Other defects included faulty steering mechanisms and suspensions, rusty chassis and doors and seatbelts which did not work.’
    • ‘Should software makers be made more accountable for damage caused by faulty programs?’
    • ‘A faulty device whose damage was not apparent to the user caused the overinfusion.’
    • ‘Most of the broken and faulty lights in the village have now been put right.’
    • ‘The most common defects were bare tyres, faulty brakes, steering and suspension, plus broken headlights and brake lights.’
    malfunctioning, broken, damaged, defective, not working, not functioning, in disrepair, out of order, out of commission, inoperative, unsound, unusable, useless
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    1. 1.1 (of reasoning and other mental processes) mistaken or misleading because of flaws.
      ‘faulty logic’
      • ‘Unfortunately, the consensus is based on faulty assumptions and thus wrong solutions.’
      • ‘We were alerted this week to the fact that we hold incorrect opinions and deploy faulty logic.’
      • ‘As illustrated in this article, too many faulty assumptions underlie their development and use.’
      • ‘What becomes of us if that memory is faulty?’
      • ‘Jenna calls him on this but her reasons are a little faulty.’
      • ‘These claims are mostly bad math, faulty logic and deception.’
      • ‘The reason for applying faulty knowledge is simple.’
      • ‘When finally she spoke, the logic sounded faulty even to her.’
      • ‘But, the answer to insufficient reporting and to faulty intelligence is more reporting.’
      • ‘He argues that defects of memory or faulty perception may apply.’
      • ‘Yet another reason for faulty divinations simply lies with the diviner making mistakes of interpretation.’
      • ‘What should be done when your memory is faulty?’
      • ‘I think this is faulty reasoning - relying on a single biological attribute rather than a range.’
      • ‘Some researchers would suggest that teachers' faulty assumptions are a result of deficit thinking.’
      • ‘I am apologetic here, as I do not understand your faulty logic in the aforementioned statement.’
      • ‘Their driving assumptions were often drawn from flawed information or based on faulty logic.’
      • ‘He also identifies irrational beliefs and faulty reasoning that may lead to poor marriage decisions.’
      • ‘His head, with faulty reasoning, told him that he had to stay away.’
      • ‘Twice a point of order has been raised, because the reasoning and logic were faulty, and I have demonstrated that.’
      defective, flawed, unsound, distorted, inaccurate, incorrect, erroneous, imprecise, fallacious, wrong
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    2. 1.2 Having or displaying weaknesses.
      ‘her character was faulty’

Pronunciation

faulty

/ˈfôltē//ˈfɔlti/