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

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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 Although there's an outside chance that the new cap is defective, ask your mechanic to scan the system for trouble codes. Motormouth Bob Weber, Star Tribune, "Motor Mouth: Noise laws can be difficult to enforce," 13 Nov. 2020 According to the suit, the county’s Board of Elections had identified at least 1,200 ballots that were defective as of Oct. 31. Chris Dolmetsch, Bloomberg.com, "Pennsylvania Republicans Sue Alleging Early Vote Counting," 3 Nov. 2020 If a small share of chips is defective, Intel can just toss them out and write off the loss. oregonlive, "Intel contemplates outsourcing advanced production, upending Oregon’s central role," 1 Nov. 2020 State law requires defective ballots to be remade by clerks so they can be fed into machines. John Bacon, USA TODAY, "Voting 2020 live updates: Court asked to tackle Wisconsin ballot misprints; early voting continues across the US and in crucial Florida," 27 Oct. 2020 Clerks need approval from the Wisconsin Supreme Court, though, in order to do that because state law requires defective ballots to be recreated by election officials. Caitlin Conant, CBS News, "2020 Daily Trail Markers: Why not make Election Day a national holiday?," 26 Oct. 2020 State law requires defective ballots to be remade by clerks so they can be fed into machines. Patrick Marley, Milwaukee Journal Sentinel, "County clerks ask Wisconsin Supreme Court to address ballot misprint affecting thousands of ballots," 26 Oct. 2020 State law requires defective ballots to be remade by the clerks so the machines can read them. Scott Bauer, Star Tribune, "Wisconsin election clerks seek order on ballot counting," 26 Oct. 2020 Percy Gill's re-election to the Wetumpka, Alabama town council the same year also prompted a rival to sue, and a civil judge also overturned the election because of defective absentee ballots. USA Today, "We analyzed a conservative foundation's catalog of absentee ballot fraud. It's not a 2020 election threat," 20 Oct. 2020

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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Statistics for defective

Last Updated

18 Nov 2020

Cite this Entry

“Defective.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defective. Accessed 25 Nov. 2020.

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More Definitions for defective

defective

adjective
How to pronounce defective (audio)

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

 (Entry 1 of 2)

: falling below the norm in structure or in mental or physical function defective eyesight

Other Words from defective

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

defective

noun

Medical Definition of defective (Entry 2 of 2)

: one that is subnormal physically or mentally

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