When it comes to conveying the probability of something happening, the phrase "believed likely" is a common expression. However, there are several other synonyms that can be used to express a similar sentiment. For instance, words like anticipated, expected, probable, plausible, and possible can effectively convey the likelihood of an event occurring. While these words don't have the exact same meaning, they all imply a reasonable certainty or likelihood of something happening. So, next time you need to express the probability of something occurring, consider using one of these synonyms and convey your point with accuracy and clarity.