ppl. a. (UN-1 8.)
1648. Hexham, II. Ongemortert, Vnplaistered.
1669. Woodhead, St. Teresa, II. viii. 77. The Portall being ill floored, and the Walls unplaistered.
1804. Southey, Lett. to Coleridge, 11 June. And so unplastered it [sc. a room] is likely to remain another winter.
1886. W. J. Tucker, E. Europe, 411. Its dark-grey unplastered walls.