👉 Unpneumatically is a word that describes an action or process in which air does not escape from a closed system, as if it were not there. This means that the air inside the closed system (usually a sealed container) remains contained within the space rather than escaping into the atmosphere. In other words, the air inside the closed system does not leave the space. For example, in a closed container with no ventilation, the air inside would remain in place due to the pressure difference between