CONFIRMATORY Synonyms: 23 Similar and Opposite Words

confirmatory

adjective

kən-ˈfər-mə-ˌtȯr-ē

Definition of confirmatory

as in confirming

serving to give support to the truth or factualness of something a confirmatory test for pregnancy

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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 confirmatory The Centers for Disease Control and Prevention (CDC) is conducting confirmatory testing, which can take up to 10 days to complete. — Jenni Fink, MSNBC Newsweek, 13 May 2026 More frequently, though, my winter surprises have been confirmatory rather than revelatory. — Daniel Fienberg, HollywoodReporter, 24 Feb. 2026 In many cases, presumptive testing requires further confirmatory testing. — Salvador Hernandez, Los Angeles Times, 29 Apr. 2025 Those drugs are unlikely to have successful confirmatory trials. — Adriane Fugh-Berman, Baltimore Sun, 10 May 2024 See All Example Sentences for confirmatory

Recent Examples of Synonyms for confirmatory

Adjective

The incredible supporting cast is made up entirely of old-hand character actors, promising but underknown newcomers, and comedy- or comedy-adjacent figures with passionate niche followings and Gumby-esque limbs.

— Kathryn VanArendonk, Vulture, 17 June 2026
Some went after Cashman, some after Boone, some after Steinbrenner’s son Hal, and some after Aaron Judge’s non-supporting cast.

— Ian O'Connor, New York Times, 10 Oct. 2025

Definition of supporting

Adjective

His friendly, supportive presence showed how the rival nations (in the far-off future in which the show was set) were capable of working together.

— JONATHAN LANDRUM JR. THE ASSOCIATED PRESS, Arkansas Online, 27 Oct. 2026
Current weather conditions are extremely supportive of the color change.

— CBS News, CBS News, 27 Oct. 2026

Definition of supportive

Adjective

Like other clubs, Gollancz expanded its service to additional, supplementary and educational texts, all optional.

— Literary Hub, Literary Hub, 20 Oct. 2026
The space is warm and lo-fi—Polaroids of friends and a handwritten lineup of the day’s specials (which can be added at a supplementary cost) are stuck to a noticeboard—but the food is sharp and assured.

— Helen Rosner, New Yorker, 11 Oct. 2026

Definition of supplementary

Browse Nearby Words

confirmations

confirmatory

confirmed

See all Nearby Words

Cite this Entry

Style

“Confirmatory.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/confirmatory. Accessed 28 Oct. 2026.

Copy Citation

Synonyms of confirmatory

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

grotesque

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

12 Lovely and Unusual Words for the Natural World

Why do we 'bury the lede?'

'Za' and 9 Other Words to Help You Win at SCRABBLE

Popular

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes