ppl. a. (UN-1 10.)

1

1653.  Milton, Hirelings, Wks. 1851, V. 357. To heap such unconvincing Citations as these in Religion,… argues not much Learning nor Judgment.

2

1885.  W. S. Gilbert, Mikado, II. 41. A bald and unconvincing narrative.

3

  Hence Unconvincingly adv.

4

1891.  F. W. Newman, Cdl. Newman, 18. He quoted Scripture unconvincingly.

5