The term "pressurize" typically means to apply pressure or force to something, often in a figurative sense. However, there are several antonyms for this term that convey the opposite meaning. One such antonym is "relax," which suggests a release of tension or pressure. Another potential antonym is "unburden," which suggests a removal of stress or obligation. Similarly, the term "untangle" could be considered an antonym, as it implies clarity and simplicity rather than a complex or difficult situation. Other possible antonyms for "pressurize" include "ease," "calm," and "loosen." By understanding these opposite meanings, one can better understand the nuances of language and express themselves more effectively.