Based on logic, not fact

• Existing independent of experience, in logic
• Fully inferable
• Like some knowledge
• Presumptive
• Derived by logic, without observed facts (Latin)
• Based on deduction as opposed to experience
• Presupposed by experience
• Religious leader engaged in excellent form of reasoning
• Kind of assumption

Wiktionary Word definitions in Wiktionary
adv. (alternative form of a priori English)