defective

adjective
de·​fec·​tive | \ di-ˈfek-tiv How to pronounce defective (audio) \

Definition of defective

 (Entry 1 of 2)

1a : having a defect or flaw : imperfect in form, structure, or function replaced a defective light switch products manufactured with defective materials defective intestinal absorption a defective gene
b dated, now offensive : having a physical or mental impairment
2 grammar : lacking one or more of the usual forms of inflection (see inflection sense 2) Must is a defective verb.

defective

noun

Definition of defective (Entry 2 of 2)

1 : something that is imperfect in form, structure, or function … if we examine 18 items off the production line, we may be interested in the number of defectives we observe in the sample of size 18.— Lloyd Jaisingh
2 dated, now offensive : a person having a physical or mental impairment

Other Words from defective

Adjective

defectively adverb
defectiveness noun

Synonyms & Antonyms for defective

Synonyms: Adjective

Antonyms: Adjective

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Examples of defective in a Sentence

Adjective This computer is defective. I want my money back. The disease is caused by a defective gene.
Recent Examples on the Web: Adjective The families of the deceased have sued Riad for negligence, and Tesla, accusing the firm of selling defective vehicles. Stephanie Mlot, PCMAG, 19 Jan. 2022 The families of both victims are suing Riad and Tesla in separate lawsuits, alleging that Riad was negligent and that Tesla has sold defective vehicles. Jonathan M. Gitlin, Ars Technica, 18 Jan. 2022 The Sunbeam cooker and others were made with defective lids that did not always prevent the pressure cooking operation. Ron Hurtibise, sun-sentinel.com, 11 Jan. 2022 Federal safety regulators have opened an investigation into whether a defective space heater was to blame for a fire in the Bronx on Sunday that killed at least 19 people. Washington Post, 10 Jan. 2022 That’s because Webb will be too far away for rescuing, as was necessary when Hubble turned out to have blurry vision from a defective mirror. Marcia Dunn, baltimoresun.com, 25 Dec. 2021 That’s because Webb will be too far away for rescuing, as was necessary when Hubble turned out to have blurry vision from a defective mirror. Marcia Dunn, chicagotribune.com, 25 Dec. 2021 All 2017-22 Bolt EVs and EUVs — an SUV-style body of the car — are under recall for defective batteries that could pose a fire risk. Jamie L. Lareau, Detroit Free Press, 15 Dec. 2021 The vehicles, which were damaged when a catastrophic tornado hit Kentucky and five other states last month, will reportedly be scrapped to ensure no defective cars end up on the road. Bryan Hood, Robb Report, 6 Jan. 2022 Recent Examples on the Web: Noun After two replacement phones (one defective, the next meant for another customer and locked) and 15 different Apple customer service representatives, Holland, a publicist in Wilmington, N.C., searched online for Jobs’s email address. Washington Post, 23 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'defective.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of defective

Adjective

14th century, in the meaning defined at sense 1a

Noun

1562, in the meaning defined at sense 1

History and Etymology for defective

Adjective

Middle English defectif, defectyve "lacking, faulty, of poor quality," borrowed from Anglo-French defectif, borrowed from Late Latin dēfectīvus "lacking an inflectional form, imperfect, faulty," from Latin dēfectus, past participle of dēficere "to be lacking, run short, fail" + -īvus -ive — more at deficient

Noun

derivative of defective entry 1

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Time Traveler for defective

Time Traveler

The first known use of defective was in the 14th century

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Dictionary Entries Near defective

defection

defective

defective delinquent

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Statistics for defective

Last Updated

23 Jan 2022

Cite this Entry

“Defective.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defective. Accessed 24 Jan. 2022.

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More Definitions for defective

defective

adjective

English Language Learners Definition of defective

: having a problem or fault that prevents something from working correctly : having a defect or flaw

defective

adjective
de·​fec·​tive | \ di-ˈfek-tiv How to pronounce defective (audio) \

Kids Definition of defective

: having a defect or flaw The car's brakes were defective.

defective

adjective
de·​fec·​tive | \ di-ˈfek-tiv How to pronounce defective (audio) \

Medical Definition of defective

: falling below the norm in structure or function a defective heart valve

Other Words from defective

defectiveness \ -​nəs How to pronounce defective (audio) \ noun

More from Merriam-Webster on defective

Nglish: Translation of defective for Spanish Speakers

Britannica English: Translation of defective for Arabic Speakers

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