"Be predicated on" refers to the act of basing something on a particular idea or belief. If you're looking for synonyms for this phrase, consider these alternatives: depend on, rely on, hinge on, rest on, be based on, be anchored in, be grounded in, be established upon, be rooted in, be founded on, stem from, arise from, spring from, proceed from. Each of these phrases implies a similar concept of building or relying on a foundation for a particular outcome or action. By using different synonyms for "be predicated on," you can add variety to your writing and express your ideas more precisely.