a. (UN-1 7 b.)

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1816.  Southey, Ess. (1832), I. 241. It was vehement grief,… unalleviated … and … unalleviable.

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1887.  H. Drummond, in G. A. Smith, Life (1899), xi. 274. The thing that crushes is to look on silently at the unalleviable pain of those we love.

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