An informal term describing an ineffective or disappointing response.

A term used in specific contexts, such as in chemistry or engineering, referring to an unsatisfactory or failed reaction.

असंतोषजनक या विफल प्रतिक्रिया

English Usage: The experiment yielded a duff reaction that did not match the expected results.

Hindi Usage: प्रयोग ने असीमित प्रतिक्रिया दी जो अनुमानित परिणामों से मेल नहीं खाती।