IPA: /diˈɪstɪkli/
KK: /diˈɪstɪkli/
In a way that relates to deism, which is the belief in a creator who does not intervene in the universe.
He approached the topic deistically, believing in a higher power that does not interfere with human affairs.
Deistically → It is formed from "deus" (meaning god) and the suffix "-ic" (meaning pertaining to) combined with "-ally" (meaning in a manner). The word refers to a manner of belief or philosophy that pertains to the existence of a god, particularly one that does not intervene in the universe.
Think of 'deus' meaning god, and remember that 'deistically' refers to a way of thinking about god that emphasizes a non-interventionist role.