ppl. a. (UN-1 10.)

1

1820.  Mrs. Opie, Tales of Heart, IV. 344. Nor is that the only treasure you thought lost and have found again, rash unconfiding boy!

2

1870.  J. Bruce, Life Gideon, xx. 368. Gideon’s for long unconfiding and undutiful, because unbelieving demeanour towards the Lord.

3