1787. Generous Attachment, IV. 231. Those [articles] which the subtle Mr. Archer … endeavoured to hammer out of the unplastic disposition of the relentless Sir James.
1883. C. C. Perkins, Italian Sculpture, III. i. 244. Statues of Apollo, Mercury, Minerva and Peace … thoroughly unplastic in action and conception.
1894. Illustr. Lond. News, 34 March, 364/3. The idea of harsh unplastic feeling.
