The antonyms for "falling by" include "increasing by," "rising by," and "climbing by." These words convey the opposite meaning and suggest a positive trend instead of a negative one. For instance, if the stock market falls by 10%, it can be interpreted as a loss of investors' wealth, whereas if the stock market rises by 10%, it means that the investors have gained profits. Similarly, if the temperature falls by 5 degrees, it indicates a decrease in heat, whereas if the temperature rises by 5 degrees, it implies an increase in warmth. Antonyms for "falling by" help to communicate the precise opposite message and add clarity to the conversation.