a. [UN-1 7 b.] Incapable of being decided.
1640. Bp. Hall, Episc., III. v. 244. Things so utterly undetermined, that they are indeed altogether undecidable.
1683. Moxon, Mech. Exerc., Printing, 1. An undecidable Controversie about the original Contriver … remains on foot.
1737. L. Clarke, Hist. Bible (1740), II. 224. The question being undecidable among themselves, they appeal to Jerusalem.
1845. Carlyle, Cromwell (1872), V. 16. As this matter of the Kingship is to me even now, very ‘dark’ and undecidable!
