ppl. a. (UN-1 10.)

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1611.  Cotgr., Mescognoissant, vnacknowledging, ignorant, vngratefull.

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1656.  Earl Monm., trans. Boccalini’s Advts. fr. Parnass., I. xxxiii. 38. He … desired, that as an unacknowledging and ungrateful man, he might receive condign punishment.

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1697.  Collier, Ess. Mor. Subj., II. (1709), 35. Who could have imagined People so strangely stupid and unacknowledging?

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1752.  Mrs. Lennox, Fem. Quixote, III. viii. 208. Your Condition shall be never the worse for Miss Glanville’s unacknowledging Temper…. You are almost as unacknowledging as your Sister.

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