'Confirmative' definitions:

Definition of 'confirmative'

(from WordNet)
adjective
Serving to support or corroborate; "collateral evidence" [syn: collateral, confirmative, confirming, confirmatory, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying]

Definition of 'Confirmative'

From: GCIDE
  • Confirmative \Con*firm"a*tive\, a. [L. confirmativus: cf. F. confirmatif.] Tending to confirm or establish. --Sherwood. -- {Con*firm"a*tive*ly}, adv. [1913 Webster]