Nonfunctional: meaning, definitions and examples

Used to describe something that is not working at all or not serving its intended purpose. Often used in technical or medical contexts.

• The elevator is nonfunctional, so we have to use the stairs
• The nonfunctional gene does not produce the necessary protein

Used to describe something that doesn't achieve its intended result, often applied to methods, treatments, or strategies.

• The medicine was ineffective in treating the infection
• The new marketing campaign was ineffective and didn't increase sales

Describes something that is broken, damaged, or not made correctly, usually implying that it was faulty from the start. Commonly used for products, machinery, or components.

• The new phone is defective and won't turn on
• The factory had to recall the defective batch of cars

Indicates an item has flaws that prevent it from working correctly, often used in technical and consumer contexts.

• The faulty wiring led to a short circuit
• We had to replace the faulty printer because it kept jamming