- relating to or denoting reasoning or knowledge which proceeds from theoretical deduction rather than from observation or experience先验的, 先天的, 非根据观察（或经验）的, 演绎的, 推理的：
a priori assumptions about human nature.
对人性的推理。
- in a way based on theoretical deduction rather than empirical observation以演绎方式, 非根据经验（或观察）地：
sexuality may be a factor but it cannot be assumed a priori.
性吸引可能会是一个因素但是不能用推理的方法来假定。
派生词
apriorism
/eɪˈpraɪərɪzəm/ noun词源
late 16th cent.: Latin， 'from what is before'.