Most torrential refers to an extremely heavy downpour or rainfall. There are a number of synonyms that can be used to describe such intense weather conditions. Some of the most common synonyms for most torrential include heavy rain, pouring rain, driving rain, pelting rain, gale-force rain, downpour, deluge, and monsoon. Each of these synonyms paints a different picture of the intensity of the rainfall. For example, driving rain suggests that the rain is being propelled by strong winds, while monsoon implies a consistent, heavy rain that is occurring over a long period of time. Whatever word is used, the message is clear - this is not a light drizzle.