adjective, sour·er, sour·est.
verb (used without object)
verb (used with object)
Origin of sour
SYNONYMS FOR sour
Examples from the Web for souring
Frustrated by her souring relationship with Salinger, Maynard fixated on the idea of having a daughter.
Political independents are also souring on Obama, with just 37 percent approving of his job performance, a 10-point drop.In Wake of Surveillance Stories, Barack Obama’s Poll Numbers Plummet|John Avlon|June 17, 2013|DAILY BEAST
Of the high hopes that characterize the Western Aliyah (immigration) souring so dramatically, so brutally.
And then—five days later, with the polls showing Americans souring on the Lebanon policy—Reagan decided to pull the troops out.
Where you once cold-shouldered friends without warning, you now realize you did so out of fear that they were souring on you.
The struggle with his uncle seemed to be souring him or deadening him.Beauchamp's Career, Complete|George Meredith
The appliances for the souring of milk on the domestic scale require some consideration.The Bacillus of Long Life|Loudon Douglas
Every possible offence was punished under the name of witchcraft, from souring beer to high treason.The Works of Robert G. Ingersoll, Vol. 7 (of 12)|Robert G. Ingersoll
The same type of machine is used for liming, chemicking, and souring.
There is in this way no danger of the thick fleshy leaf base decaying under the wrap and souring and killing the buds.