Bear down upon is a common phrase that conveys the sense of pressure or force, and is often used to describe an approaching threat or challenge. There are several synonyms for this word phrase, including "bear down on," "close in on," "approach," "confront," and "converge on." Each of these phrases carries slightly different connotations, but all convey a sense of impending danger or pressure. Whether you are facing a difficult task, a tough opponent, or a challenging situation, using synonyms can help you communicate your feelings effectively, and help you stay calm and focused while facing adversity.