• IPA: /ˌeɪ pɹaɪˈɔːɹaɪ/, /ˌɑː pɹiˈɔːɹi/
• (America) IPA: /ˌeɪ pɹaɪˈɔːɹi/

a priori

1. (logic) Based on hypothesis and theory rather than experiment or empirical evidence.

   In his opening argument, the student mentioned nothing beyond his a priori knowledge.

2. Self-evident, intuitively obvious.
3. Presumed without analysis.
   • 1996, Jeet Heer, Gravitas, Autumn 1996 ↗:

     While the great critics drew their authority from the breadth of their reading, New Criterion critics often base their authority on an a priori rejection of the contemporary.

4. (linguistics, conlanging) Developed entirely from scratch, without deriving it from existing languages.

• deductive

• a posteriori

• a fortiori

• Italian: a priori, teorico, preconcetto
• Portuguese: a priori
• Russian: априо́рный

a priori

1. (logic) In a way based on theoretical deduction rather than empirical observation.

   Synonyms: deductively

   Antonyms: a posteriori#Adverb, inductively

• French: a priori
• German: a priori
• Italian: a priori
• Portuguese: a priori
• Russian: априо́ри
• Spanish: a priori