† 1. Without distinction or difference. Obs.
1671. Barrow, Serm., Wks. 1687, I. 427. So that righteousness and mercifulness … are in Scripture-expression … undistinguishably put one for the other.
1710. Tatler, No. 270, ¶ 5. Gold and silver galloon upon hats … being undistinguishably worn by Soldiers, Esquires [etc.].
2. So as to be undistinguishable.
a. 1691. Boyle, Hist. Air (1692), 248. Whilst the liquor was hot … they would swim together undistinguishably in the liquor.
1705. T. Greenhill, Art Embalming, 138. The Humour … assumes no visible Body, but undistinguishably mixes with the pure Air.
1780. Bentham, Princ. Legisl., x. § 27. In many instances the desire of pleasure and the sense of pain run into one another undistinguishably.
1869. McLaren, Serm., Ser. II. xii. 213. A faint ethereal echo … which blends undistinguishably with its parent sound.
