Having a problem or fault that prevents it from working correctly
Examples:
The recall was due to the defective airbags installed.Detecting the defective gene is key for the diagnosis.The product had a defective seal, causing leaks.
Synonyms:
Antonyms:
Deficient
/dɪˈfɪʃənt/
Lacking in something necessary or required
Examples:
Her report was deficient in key statistics.The deficient soil yielded poor crop results.His deficient knowledge led to frequent errors.
Synonyms:
Antonyms:
Ways to tell them apart:
Defective and deficient both describe something that is not perfect, but the nuance is important.
Defective suggests the presence of a flaw or fault that prevents normal operation.
Deficient suggests a shortage or lack of quality, quantity, or strength in something.
Think of a defective product as broken, while a deficient product just hasn't met a certain standard or volume.
A device could be defective if it doesn’t work; a deficient device might work but not up to expected standards.