What is another word for defective?

Need synonyms for defective? Here's a list of similar words from our thesaurus that you can use instead.

Adjective
Imperfect or faulty
“The list of faults included defective tyres, faulty brakes and defective steering.”
Adjective
Lacking or deficient
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“Responses to GIP have been shown to be defective in type 2 diabetic patients.”
Adjective
Lacking in a required or necessary quality
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Adjective
Not working or taking effect
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Adjective
Not accurate
Adjective
Wrong or faulty
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Adjective
Not based on sound or reliable evidence or reasoning
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Adjective
Having no use, purpose or reason
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Adjective
Physically or structurally not safe or robust
Adjective
Departing from an accepted standard
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Adjective
Affected by a disease or illness
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Adjective
Mentally deficient or underdeveloped
Adjective
Being naturally susceptible to weaknesses or error
Adjective
Unable to walk properly
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Adjective
On the negative side
Adjective
Erratic or out of control
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Adjective
Displaying a lack of sensibleness or judgment
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Adjective
Flimsy, or made of flimsy material
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