Definitions

confirmatory

[kuhn-fur-muh-tawr-ee] / kənˈfɜr məˌtɔr i /

ADJECTIVE

affirmative

Synonyms

STRONG

affirmatory approving positive supporting

WEAK

acknowledging acquiescent affirming complying concurring confirmative confirming consenting corroborative endorsing favorable ratifying

Antonyms

WEAK

dissenting negative

ADJECTIVE

collateral

Synonyms

STRONGEST

ancillary

STRONG

accessory adjuvant attendant auxiliary complementary concomitant coordinate dependent incident lateral parallel roundabout satellite side sub subordinate subsidiary supporting tributary

WEAK

accompanying added adjunctive appurtenant circuitous coincident concurrent corresponding corroborative not lineal related subservient under

Antonyms

STRONG

chief different dissimilar important independent major necessary unrelated

WEAK

direct main primary principal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In February, the FDA Commissioner unveiled a new default position that just one “adequate and well-controlled” study combined with confirmatory evidence will underpin marketing authorization of novel products.

From The Wall Street Journal • Mar. 10, 2026

But in 2022, it said it would withdraw the drug after it failed External link a required confirmatory trial.

From Barron's • Oct. 24, 2025

"I think the urgency and importance of doing the confirmatory work can't be overstated."

From Science Daily • Oct. 19, 2025

But it’s unclear whether the National Veterinary Surveillance Laboratory in Ames, Iowa — where confirmatory testing for bird flu in animals is currently taking place — will stay open.

From Los Angeles Times • Dec. 20, 2024

“Of course not,” echoed Mariequita, with a serious, confirmatory bob of the head.

From "The Awakening" by Kate Chopin

confirmatory

Example Sentences

Related Words