What is another word for in sanest?
Pronunciation: [ɪn sˈe͡ɪnəst] (IPA) 
When looking for synonyms for the phrase "in sanest," several options come to mind. One possible replacement could be "most insane," highlighting the extremity of insanity in a given situation. Alternately, "most irrational" or "most unstable" could also convey a sense of mental instability or unsoundness. Additionally, the phrase "on the brink of madness" could be used to describe a situation that is particularly volatile or dangerous. Ultimately, the choice of synonym will depend on the context in which one wants to use it, and the nuances of meaning they wish to convey.
