- unclear (adj.)
- c.1300, "not easy to understand," from un- (1) "not" + clear (adj.). Cf. Middle Dutch onclaer, Dutch onklaar, German unklar, Old Norse uklarr, Danish uklar, Swedish oklar. Of persons, in sense of "uncertain, doubtful," it is recorded from 1670s. Uncleared is recorded from 1630s in reference to debts, 1772 in reference to land.