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defective

/dɪˈfɛktɪv/ adjective

In Latin: vitiōsus, mendōsus, dēfectīvus Wiktionary

adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about defective at Wordnik → Where our words come from →

  1. Having a defect.
    I returned the appliance because it was defective
  2. Markedly subnormal in structure or function or intelligence or behavior.
    defective speech
  3. Not working properly.
    a bad telephone connection

Origin

From Middle English defectif, defective, from Old French defectif, from Late Latin dēfectīvus.

From Wiktionary, via Kaikki.org (CC BY-SA)