Definition of "confirmative" [con•firm•a•tive]

• That serves to confirm (adjective)

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• "Homing in on the archaeological work that has been done in central-east Tanzania, I present a synthesis of the archaeological and linguistic-derived findings and show that their conclusions correlate in detailed and mutually confirmative ways."
• "A photo taken of it is not confirmative, looks a bit more like a dog than a lion."
• "From his brother Stephen he received a short confirmative nod."