unkind

Etymology

From Middle English unkind; equivalent to un- + kind.

adj

1. Lacking kindness, sympathy, benevolence, gratitude, or similar; cruel, harsh or unjust; ungrateful.
   Despite the bursitis, Dewey got in a good round of golf, though his cautious game inspired a reporter to make one of the week′s unkindest remarks: “He plays golf like he plays politics — straight down the middle, and short.” July 3 1950, “Politicians Without Politics”, in Life, page 16
   We had to learn that to refuse such gifts, which represented serious sacrifice, was more unkind than to accept them. 1974, Laurence William Wylie, Village in the Vaucluse, 3rd edition, page 175
   In the strictness with which he holds this view he belongs in the company of the novelists I have cited, except that he is unkinder and less charitable than they are. 2000, Edward W. Said, “On Lost Causes”, in Reflections on Exile and Other Essays, page 540
2. (obsolete) Not kind; contrary to nature or type; unnatural.
   […] A Feauer is an vnkinde heate, that commeth out of the heart, and passeth into all the members of the bodye, and grieueth the working of the bodye. 1582, Stephen Batman, transl., Batman vppon Bartholome His Booke De Proprietatibus Rerum, London, Book 7, Chapter 33
   Crowes will not feed their yong til 9. daies old, Because their vnkind colour makes them doubt Them to be theirs; 1617, John Davies, Wits Bedlam, London, Epigram 116
3. (obsolete) Having no race or kindred; childless.