Antonyms for the term "transaction" may include "gift," "donation," "charity," or "altruism." These words indicate a type of exchange that is not driven by the exchange of resources or goods for monetary value or other material benefits. Instead, these acts suggest a level of generosity, compassion, or kindness that is selfless and intended to benefit others without seeking anything in return. In contrast, a transaction is a business or monetary exchange of services or goods between multiple parties. Therefore, antonyms for "transaction" indicate a different type of exchange that is rooted in kindness, generosity, and selflessness.