a_priori
1. [ adjective ] based on hypothesis or theory rather than experiment
Related terms: theoretical
2. [ adverb ] (logic) derived by logic, without observed facts
Related terms: a_posteriori
3. [ adjective ] (logic) involving deductive reasoning from a general principle to a necessary effect; not supported by fact
Examples:

"an a priori judgment"

Related terms: a_posteriori deductive analytic