Defective: meaning, definitions and examples

Used when referring to items or systems that don't work properly, generally due to a manufacturing error.

• The company had to recall the defective toys for safety reasons.
• The appliance was returned because it was defective.

Often used for machinery, electronics or components that are prone to malfunctions or errors.

• The engineer identified a faulty wire in the circuit.
• Our phone lines are down because of a faulty connection.

Used when something does not reach a standard of perfection but still may function adequately.

• The handmade pottery is charming, albeit imperfect.
• He published an imperfect draft to gauge initial reactions.

Describes something that has imperfections or mistakes, could be used for both physical items and abstract concepts like plans or arguments.

• The gemstone was heavily flawed, which lowered its value.
• Her argument was flawed, but she made some valid points.

Describes things that fall below an acceptable or desired standard, usually with a negative connotation.

• The construction company was fined for using substandard materials.
• His work was deemed substandard and needed to be redone.

Used to describe an object or product that has a flaw or malfunction which prevents it from working as intended.

• The factory had to recall thousands of defective cars.
• The toy was defective and posed a danger to children.

Best used when something or someone is insufficient in quantity, quality, or capability to meet a specific requirement or standard.

• The food provided was inadequate for the number of guests.
• His inadequate skills prevented him from getting the job.

Refers to methods, actions, or products that do not produce the desired result or outcome.

• The medication proved ineffective in treating the disease.
• The new policy was ineffective and needed revision.

Typically applied to machinery, electronics, or other complex systems that fail to operate correctly due to some inherent problem.

• The faulty wiring caused the fire.
• She returned the faulty laptop to the store.