the act of swinging back and forth

weak or lacking strength

ineffectual

असक्षम

English Usage: The feeble attempts to fix the issue were disappointing.

Hindi Usage: समस्या को ठीक करने के कमजोर प्रयास निराशाजनक थे।

fluctuation or variation

परिवर्तन या भिन्नता

English Usage: There was an oscillation in stock prices throughout the week.

Hindi Usage: सप्ताह भर में शेयर मूल्यों में परिवर्तन हुआ।