The antonyms of the term pro-rating could include whole, complete, unchanged, fixed, and unaltered. These words suggest the absence of division or proportionality in terms of calculating payments or assigning partial amounts. Pro-rating, on the other hand, means distributing or dividing something according to a specific ratio or percentage. It is commonly used in the context of employee salaries, pro-rated vacation time, or prorated fees for services. Understanding the antonyms of any term is crucial in utilizing language more accurately, especially in written or spoken communication. By using relevant antonyms, one can convey intended meanings and avoid ambiguity or misunderstandings.