fluctuatingadjective [ before noun ]
uk/ˈflʌktjueɪtɪŋ/us/ˈflʌktʃueɪtɪŋ/fluctuating prices, levels, or interest rates go up and down:
Flexible mortgages are suitable for borrowers with reliable but fluctuating income.
Using temporary workers helps firms to cope with fluctuating demand.
fluctuating prices/currencies/exchange rates