adv. [UN-1 11: cf. prec.] Without design or intention; unintentionally.

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1687.  Boyle, Martyrd. Theodora, xi. 120. Having been, though undesignedly, so … accessory to the early loss of a life.

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1768–74.  Tucker, Lt. Nat. (1834), II. 679. It is better they should do good undesignedly … than not to do it at all.

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1829.  I. Taylor, Enthus., X. 299. Insensibly and undesignedly and from the operation of various causes.

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1884.  Law Times, 20 Sept., 345. It is this aspect … on which ‘W. B.’ seems, perhaps not altogether undesignedly, to have thrown most light.

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