The antonyms for the word "up-rising" are primarily related to calmness and stability. The first antonym that comes to mind is "quiescence," which refers to a state of being tranquil or peaceful. Another word that is often used in opposition to up-rising is "peacefulness," which evokes images of a serene environment, perhaps complemented by birdsongs and some light breeze. Other contrasting words for up-rising could be "serenity," "tranquillity," "quietness," "harmony," "placidity," and "calm." These antonyms highlight the idea of absence or lack of disturbance, noise, or conflict, representing a state of balance and tranquility that is the opposite of up-rising.