The phrase "decided by fate" can be expressed using various synonyms to add clarity and intrigue to writing. Words that convey the idea of something being predetermined or beyond one's control include preordained, destined, fated, predestined, or predetermined. Conversely, to convey a sense of randomness or chance, writers may use expressions like fortuitous, haphazard, coincidental, or serendipitous. Additionally, words such as unavoidable, inescapable, or inevitable can highlight the inevitability of a particular outcome. Synonyms for the phrase "decided by fate" can imbue a piece of writing with a sense of gravity and mystery while imparting valuable information about the nature of who or what determines the course of events.