c. 1470. Henry, Wallace, IX. 347. We fand nane in that art, That proffryt ws sic wnkyndlynes.
1587. Golding, De Mornay, xvii. 308. His wrath cannot bee kindled against nature , but against the faultinesse and vnkindlynesse that are in nature.
1627. Hakewill, Apol., II. § 3. 133. The vnkindlinesse of the weather now hurtfull to the fruites.
1668. H. More, Div. Dial., II. ix. 223. The unkindliness of the Season.
1763. Mills, Pract. Husb., I. 206. The uncommon unkindliness of the soil.
1797. Lamb, Lett. to Coleridge, 7 April. Clear from the imputation of unkindliness (a word, by which I mean the diminutive of unkindness).
1859. Tennyson, Merlin & V., 735. Killd with inutterable unkindliness.