A PRIORI Synonyms: 61 Similar and Opposite Words

a priori 1 of 2

adjective

ˌä-prē-ˈȯr-ē

Definition of a priori

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

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Antonyms & Near Antonyms

a priori

2 of 2

adverb

as in early

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

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 See All Example Sentences for a priori

Recent Examples of Synonyms for a priori

Adjective

That would be demonstrated if general relativity is derivable from quantum gravity.

— Amanda Gefter, Quanta Magazine, 25 Sep. 2024
And to little purpose, there being agreement among most faiths on the important morals, generally derivable from the golden rule.

— Letters To The Editor, The Mercury News, 16 Aug. 2024

Definition of derivable

Adverb

In New York City, the Macy's Fourth of July fireworks started a little earlier than scheduled to beat incoming storms.

— Jon Haworth, ABC News, 5 July 2026
The Secret Service said earlier this evening that all attendees who evacuated the venue due to orders to shelter from approaching severe storms would have to go through security screenings again.

— Kyla Guilfoil, NBC news, 5 July 2026

Definition of early

Adjective

None are credible challengers; Matt Conroy is the more reasoned and moderate of the three.

— The Editorial Board, Chicago Tribune, 11 Feb. 2026
This is a time for cool, calm and reasoned debate, and for legislators to think through the consequences of legislation put forth.

— Bobby Zirkin, Baltimore Sun, 15 Jan. 2026

Definition of reasoned

Adverb

In December 2022, his son was born prematurely after an emergency C-section and needed expensive intensive care.

— Gonzalo Zegarra, CNN Money, 7 July 2026
But to forcibly take their jobs from all controllers prematurely simply to follow some rigid sunset script is a terrible loss for the very shareholders the governistas claim to protect.

— Jeffrey Sonnenfeld, Fortune, 6 July 2026

Definition of prematurely

Adverb

Bonaly had already attended Blazy’s Chanel show in March, alongside Claudie Haigneré, the first French woman to reach space.

— Laure Guilbault, Vogue, 10 July 2026
Air Force partnership expands The award extends Asylon’s collaboration with the Air Force beyond autonomous security operations, an area where its robotic platforms already support active missions.

— Aamir Khollam, Interesting Engineering, 10 July 2026

Definition of already

Adverb

Since the audit tool was introduced, multiple departments have announced arrests of officers across the state, signaling a level of misuse that may have previously gone undetected.

— Taylor Croft, AJC.com, 9 July 2026
The Calabria governor confirmed that 63 Cuban doctors, some of them previously involved in Cuba’s international medical mission, recently applied to work in its healthcare system independently.

— ABC News, ABC News, 9 July 2026

Definition of previously

Adverb

While Hansen's three crewmates had all ventured to space before, the mission was the Canadian's first spaceflight in his 17-year astronaut career.

— Eric Lagatta, USA Today, 8 July 2026
Soup is easy to make one day before, and hearty lentils hold up to the broth, unlike pasta noodles, which can get extra soft.

— Katlyn Moncada, Better Homes & Gardens, 7 July 2026

Definition of before

Browse Nearby Words

après

a priori

apropos

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“A priori.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/a%20priori. Accessed 10 Jul. 2026.

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Synonyms of a priori

adjective

adverb

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