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Webster 1913 Edition
Unkind
Un-kind′
,Adj.
 1. 
Not kind; contrary to nature, or the law of kind or kindred; unnatural. 
[Obs.] 
“Such unkind abominations.” Chaucer.
 2. 
Wanting in kindness, sympathy, benevolence, gratitude, or the like; cruel; harsh; unjust; ungrateful. 
He is 
– unkind 
that recompenseth not; but he is most unkind 
that forgetteth. Sir T. Elyot.
Un-kind′ly
, adv.
 Un-kind′ness
, Noun.
Webster 1828 Edition
Unkind
UNKIND
,Adj.
 1.
  Not kind; not benevolent; not favorable; not obliging.2.
  Unnatural.Definition 2025
unkind
unkind
English
Adjective
unkind (comparative unkinder or more unkind, superlative unkindest or most unkind)
-  (obsolete) Having no race or kindred; childless.
- (Can we find and add a quotation of Shakespeare to this entry?)
 
 - Not kind; contrary to nature or type; unnatural. [From 13thC.]
 -  Lacking kindness, sympathy, benevolence, gratitude, or similar; cruel, harsh or unjust; ungrateful. [From mid-14thC.]
-  1950 July 3, Politicians Without Politics, Life, page 16,
- 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.”
 
 -  1974, Laurence William Wylie, Village in the Vaucluse, 3rd Edition, page 175,
- We had to learn that to refuse such gifts, which represented serious sacrifice, was more unkind than to accept them.
 
 -  2000, Edward W. Said, On Lost Causes, in Reflections on Exile and Other Essays, page 540,
- 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.
 
 
 -  1950 July 3, Politicians Without Politics, Life, page 16,
 
Derived terms
- unkindest cut