Hyper Dictionary

English Dictionary Computer Dictionary Video Dictionary Thesaurus Dream Dictionary Medical Dictionary

Search Dictionary:  

Meaning of A PRIORI

Pronunciation:  `ey prI'owree

WordNet Dictionary
  1. [adj]  based on hypothesis or theory rather than experiment
  2. [adv]  derived by logic, without observed facts
  3. [adj]  involving deductive reasoning from a general principle to a necessary effect; not supported by fact; "an a priori judgment"
 Synonyms: theoretic, theoretical
 Antonyms: a posteriori, a posteriori
 See Also: analytic, analytical, deductive



Webster's 1913 Dictionary
\A` pri*o"ri\ [L. a (ab) + prior former.]
1. (Logic) Characterizing that kind of reasoning which
   deduces consequences from definitions formed, or
   principles assumed, or which infers effects from causes
   previously known; deductive or deductively. The reverse of
   a posteriori.

3. (Philos.) Applied to knowledge and conceptions assumed, or
   presupposed, as prior to experience, in order to make
   experience rational or possible.

         A priori, that is, form these necessities of the
         mind or forms of thinking, which, though first
         revealed to us by experience, must yet have
         pre["e]xisted in order to make experience possible.

Thesaurus Terms
 Related Terms: a fortiori, a posteriori, analytic, back, backward, categorical, conditional, deducible, deductive, derivable, dialectic, discursive, dogmatic, early, enthymematic, epagogic, ex post facto, hypothetical, inductive, inferential, into the past, maieutic, reasoned, retroactive, retrospective, soritical, syllogistic, synthetic