IPA: //feɪtəˈlɪstɪkli//
KK: /ˈfeɪtəlɪstɪkli/
In a way that shows acceptance of events as inevitable and beyond one's control.
She approached the situation fatalistically, believing that whatever happened was meant to be.
Fatalistically → It is formed from "fatalism" (from Latin "fatum", meaning fate) and the suffix "-ically" (meaning in a manner relating to). The word "fatalistically" describes the manner of accepting that events are predetermined and inevitable, as dictated by fate.
Think of 'fate' ('fatum') to remember that 'fatalistically' means accepting things as predetermined.