confirmatory

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

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affirmative adj.
collateral adj.

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.

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confirmatory

In the Air India case, investigators will need to establish much more than the alleged fact that the captain's confirmatory test was positive.

From BBC ● Aug. 15, 2026

Simpson said the agency indicated it wouldn’t require new subjects to be dosed for a confirmatory study, only that the original 13 be followed longer to monitor neurocognitive development.

From The Wall Street Journal ● Jun. 22, 2026

“This order is another strong signal of Aehr’s solution for AI end-markets and confirmatory of our thesis,” the analysts wrote.

From Barron's ● Apr. 3, 2026

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

From Science Daily ● Oct. 19, 2025

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

From "The Awakening" by Kate Chopin

confirmatory

Example Sentences

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