The word "make jump" implies encouraging or forcing an object or individual to leap or move upwards suddenly. Opposite antonyms for "make jump" could include "hold down," "press down," or "keep still," which suggest restraining or preventing any upward movement. "Calm," "pacify," or "soothe" could be other antonyms, as these words indicate a sense of tranquility or stillness. Other antonyms for "make jump" could be "dampen," "hinder," or "quell," all of which indicate stopping or slowing down any sudden or upward movement. Ultimately, the antonyms for "make jump" convey restraint, steadiness, and a lack of sudden or unpredictable movements.