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Adjective: a priori  ,ey,prI'or-ee
  1. Involving deductive reasoning from a general principle to a necessary effect; not supported by fact
    "an a priori judgment"
  2. Based on hypothesis or theory rather than experiment
Adverb: a priori  ,ey,prI'or-ee
  1. Derived by logic, without observed facts

See also: analytic, analytical, deductive, theoretic, theoretical

Antonym: a posteriori

Encyclopedia: A priori