Synonyms of a priori

a priori 1 of 2

adjective

ˌä-prē-ˈȯr-ē 

as in inferable

being or provable by reasoning in which the conclusion follows necessarily from given information

an a priori argument for the defendant's innocence

Synonyms & Similar Words

• inferable
• derivable
• reasoned
• logical
• deducible
• deductive
• hypothetical
• theoretical
• inferential
• purported
• speculative
• conjectural
• supposed
• rational
• suppositional
• academic

Antonyms & Near Antonyms

• definite
• nondeductive
• explicit
• inductive
• absolute
• express
• categorical
• intuitive
• instinctive
• irrational
• inducible
• illogical

a priori

2 of 2

adverb

as in early

Related Words

• early
• earlier
• prematurely
• already
• previously
• before
• anteriorly
• first off
• ahead
• first
• beforehand
• formerly
• preliminarily
• antecedently
• before long
• now
• afore
• shortly
• soon
• erelong
• presently

Dissimilar Words

• later
• afterward
• after
• next
• subsequently
• behind
• by and by

Example Sentences

Recent Examples of a priori

Adjective

This sort of a priori justification for ESAs explains a few things. — Chandler Fritz, Harpers Magazine, 20 Aug. 2025

One of his most significant contributions was introducing new mathematical tools to model and incorporate a priori data—which relies on deductive reasoning to make predictions—to address signal recovery challenges. — IEEE Spectrum, 3 Oct. 2024

Knowing a priori which stocks will outperform the market is also much more difficult than reviewing the trends that occurred in the past. — Wayne Winegarden, Forbes, 2 Oct. 2024

Alongside this effort, wildlife trafficking should be designated as a predicate offense for wiretap authorizations, which would empower authorities to start gathering intelligence without having to prove a link to other crimes a priori. — Vanda Felbab-Brown, Foreign Affairs, 15 May 2023