ppl. a. (UN-1 8.)

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1819.  W. Faux, Mem. Days Amer. (1823), 175. The supreme judge is only distinguished from the rest by a shabby blue threadbare coat, dirty trowsers, and unblacked shoes.

2

1836.  Hood’s Comic Ann., 80. So like Othello, with his face unblack’d.

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1887.  T. Hardy, Woodlanders, II. viii. 143. He … had sometimes been … seen on Sundays with unblacked boots.

4