The phrase "more mitigatory" can be defined as something that reduces the severity or impact of a particular situation. However, there are several synonyms that can be used in place of this phrase. Words such as "alleviating", "soothing" and "palliative" all convey a similar meaning. Another option is the word "ameliorative," which suggests that a situation is being improved or made better in some way. Similarly, "mitigating" and "moderating" can also be used to describe actions that are taken to lessen the severity of a particular situation. Overall, there are multiple ways to describe something that is "more mitigatory," depending on the context and emphasis of the situation.