Finding synonyms for the word "more extenuatory" can be a difficult task because it is not a very commonly used term. However, some phrases with similar meanings to "more extenuatory" might include "more justifying," "more excusing," or "more mitigating." Alternatively, you could use adjectives such as "less damning," "less critical," or "less incriminating" to convey a similar sentiment. Ultimately, the best synonym for "more extenuatory" will depend on the context of your writing and the specific meaning you are trying to convey.