General Antonyms:
* Inferiority: This refers to something of low quality or standard.
* Poorness: This is a more general term for something lacking in quality.
* Deficiency: This emphasizes a lack of something desirable or essential.
Context-Specific Antonyms:
* Quantity: This is relevant when discussing the amount of something, as opposed to its quality.
* Lack: This can be used when something is missing or deficient in quality.
* Flaw: This refers to a specific defect or imperfection that detracts from quality.
Example:
* "The quality of the food was excellent, unlike the inferiority of the service."
* "The poorness of the product led to many customer complaints."
* "The painting lacked quality due to a deficiency in technique."
The best antonym for "quality" will depend on the specific context and what aspect of quality you want to contrast.