adjective, sour·er, sour·est.
verb (used without object)
verb (used with object)
Origin of sour
Synonyms for sour
Antonyms for sour
Examples from the Web for sour
Contemporary Examples of sour
And research shows that sugar has a sour effect on mental health, too.9 Ways to Cope With Seasonal Affective Disorder
December 5, 2014
One strip, Foolish Grandpa and Sour Henry, shows Grandpa being hit on the head by a sandbag and blown up by dynamite.The Magazine That Made—and Unmade—Politicians
November 2, 2014
Then when he looked away, she would make a face as if she just drank a cup of sour milk.It Was All a Dream: Drama, Bullshit, and the Rebirth of The Source Magazine
October 14, 2014
A girl from South Africa, with short hair and a sour face marrying the Prince?Princess Charlene's Monaco Nightmare
September 15, 2014
But Sandler was left with a sour taste in his mouth when he, along with his best friend Chris Farley, was fired from SNL in 1995.Adam Sandler Talks Getting Fired From ‘SNL,’ Bad Reviews, and His Desire to Play a Villain
September 12, 2014
Historical Examples of sour
In Berry it is the women that are sour, but the wines are rich.The White Company
Arthur Conan Doyle
And on his countenance there was a sour, querulous, resentful expression.Night and Morning, Complete
It is not blood, but sour buttermilk that flows in their veins.'Micah Clarke
Arthur Conan Doyle
The bread was sour and the Italian butter rank and cheesy—often uneatable.Samuel Butler: A Sketch
Henry Festing Jones
And what about those fatal Apples, those two sour fruits of their Love?The Book of Khalid
Word Origin for sour
Old English sur "sour, tart, acid, fermented," from Proto-Germanic *sura- "sour" (cf. Old Norse surr, Middle Dutch suur, Dutch zuur, Old High German sur, German Sauer), from PIE root *suro- "sour, salty, bitter" (cf. Old Church Slavonic syru, Russian syroi "moist, raw;" Lithuanian suras "salty," suris "cheese").
French sur "sour, tart" (12c.) is a Germanic loan-word. Meaning :having a peevish disposition" is from early 13c. Sense in whisky sour (1885) is "with lemon added" (1862). Sour cream is attested from 1855.
c.1300, from sour (adj.). Cf. Old High German suren, German säuern. Related: Soured; souring.