a. (UN-1 7.)

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1747.  G. West, Resurrect., 355. The simple, unaffected, unornamental and unostentatious Manner, in which they deliver Truths so important.

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1829.  Cobbett, Eng. Gard., v. § 198. Borage … is by no means unornamental in a flower-garden.

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1834.  Gentl. Mag., CIV. I. 34. Two small arches of massy and unornamental stone-work.

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  Hence Unornamentally adv.

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1889.  Times, 27 Dec., 11. These cans … are used ingeniously, if unornamentally, as building materials in the repair of roofs.

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