Hypertext Webster Gateway: "soured"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sour \Sour\, v. i. [imp. & p. p. {Soured}; p. pr. & vb. n.
{Souring}.]
To become sour; to turn from sweet to sour; as, milk soon
sours in hot weather; a kind temper sometimes sours in
adversity.
They keep out melancholy from the virtuous, and hinder
the hatred of vice from souring into severity.
--Addison.
From WordNet (r) 1.7 (wn)
soured
adj : having turned bad [ant: {unsoured}]
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